People gather near the scene of a collapsed building in Lagos, Nigeria, Thursday March 14, 2019. Search and rescue work continues in Nigeria a day after a building containing a school collapsed with scores of children said to be inside. A National Emergency Management Agency spokesman late Wednesday said 37 people had been pulled out alive, with eight bodies recovered from the ruins. An unknown number remain missing. (AP Photo/Sunday Alamba)

Emergency workers attend the scene of a collapsed building in Lagos, Nigeria, Thursday March 14, 2019. Search and rescue work continues in Nigeria a day after a building containing a school collapsed with scores of children said to be inside. A National Emergency Management Agency spokesman late Wednesday said 37 people had been pulled out alive, with eight bodies recovered from the ruins. An unknown number remain missing. (AP Photo/Sunday Alamba)

People help rescue teams at the scene of a collapsed building in Lagos, Nigeria, Thursday March 14, 2019. Search and rescue work continues in Nigeria a day after a building containing a school collapsed with scores of children said to be inside. A National Emergency Management Agency spokesman late Wednesday said 37 people had been pulled out alive, with eight bodies recovered from the ruins. An unknown number remain missing. (AP Photo/Sunday Alamba)

Local people at the scene after a building collapsed in Lagos, Nigeria, Thursday March 14, 2019. Search and rescue work continues in Nigeria a day after a building containing a school collapsed with scores of children said to be inside. A National Emergency Management Agency spokesman late Wednesday said 37 people had been pulled out alive, with eight bodies recovered from the ruins. An unknown number remain missing. (AP Photo/Sunday Alamba)

Local people at the scene after a building collapsed in Lagos, Nigeria, Thursday March 14, 2019. Search and rescue work continues in Nigeria a day after a building containing a school collapsed with scores of children said to be inside. A National Emergency Management Agency spokesman late Wednesday said 37 people had been pulled out alive, with eight bodies recovered from the ruins. An unknown number remain missing. (AP Photo/Sunday Alamba)

A woman at the scene after a building collapsed in Lagos, Nigeria, Thursday March 14, 2019. Search and rescue work continues in Nigeria a day after a building containing a school collapsed with scores of children said to be inside. A National Emergency Management Agency spokesman late Wednesday said 37 people had been pulled out alive, with eight bodies recovered from the ruins. An unknown number remain missing. (AP Photo/Sunday Alamba)

Emergency workers attend the scene after a building collapsed in Lagos, Nigeria, Thursday March 14, 2019. Search and rescue work continues in Nigeria a day after a building containing a school collapsed with scores of children said to be inside. A National Emergency Management Agency spokesman late Wednesday said 37 people had been pulled out alive, with eight bodies recovered from the ruins. An unknown number remain missing. (AP Photo/Sunday Alamba)

General Manager of Lagos State Emergency Management Agency Tiamiyu Adesina, center, updates the press at the scene of a collapsed building in Lagos, Nigeria, Thursday March 14, 2019. Search and rescue work continues in Nigeria a day after a building containing a school collapsed with scores of children said to be inside. A National Emergency Management Agency spokesman late Wednesday said 37 people had been pulled out alive, with eight bodies recovered from the ruins. (AP Photo/Sunday Alamba)

Emergency workers attend the scene after a building collapsed in Lagos, Nigeria, Thursday March 14, 2019. Search and rescue work continues in Nigeria a day after a building containing a school collapsed with scores of children said to be inside. A National Emergency Management Agency spokesman late Wednesday said 37 people had been pulled out alive, with eight bodies recovered from the ruins. (AP Photo/Sunday Alamba)

Emergency workers attend the scene after a building collapsed in Lagos, Nigeria, Thursday March 14, 2019. Search and rescue work continues in Nigeria a day after a building containing a school collapsed with scores of children said to be inside. A National Emergency Management Agency spokesman late Wednesday said 37 people had been pulled out alive, with eight bodies recovered from the ruins.(AP Photo/Sunday Alamba)

Emergency workers and local people attend the scene after a building collapsed in Lagos, Nigeria, Thursday March 14, 2019. Search and rescue work continues in Nigeria a day after a building containing a school collapsed with scores of children said to be inside. A National Emergency Management Agency spokesman late Wednesday said 37 people had been pulled out alive, with eight bodies recovered from the ruins. (AP Photo/Sunday Alamba)

Local people attend the scene after a building collapsed in Lagos, Nigeria, Thursday March 14, 2019. Search and rescue work continues in Nigeria a day after a building containing a school collapsed with scores of children said to be inside. A National Emergency Management Agency spokesman late Wednesday said 37 people had been pulled out alive, with eight bodies recovered from the ruins. (AP Photo/Sunday Alamba)

Emergency workers and local people attend the scene after a building collapsed in Lagos, Nigeria, Thursday March 14, 2019. Search and rescue work continues in Nigeria a day after a building containing a school collapsed with scores of children said to be inside. A National Emergency Management Agency spokesman late Wednesday said 37 people had been pulled out alive, with eight bodies recovered from the ruins. (AP Photo/Sunday Alamba)

Local people attend the scene after a building collapsed in Lagos, Nigeria, Thursday March 14, 2019. Search and rescue work continues in Nigeria a day after a building containing a school collapsed with scores of children said to be inside. A National Emergency Management Agency spokesman late Wednesday said 37 people had been pulled out alive, with eight bodies recovered from the ruins. (AP Photo/Sunday Alamba)

A child is rescued from the rubble of a collapsed building in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-storey school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba), APTOPIX

A child is rescued from the rubble of a collapsed building in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-storey school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba), APTOPIX

A child is rescued from the rubble of a collapsed building in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-storey school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba)

Emergency services attend the scene after a building collapsed in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-storey school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba)

Emergency services attend the scene after a building collapsed in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-storey school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba)

A body is recovered from the rubble of a collapsed building in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-storey school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba)

A woman cries as a body of child is recovered from the rubble of a collapsed building in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-storey school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba)

A woman cries as a body of child is recovered from the rubble of a collapsed building in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-storey school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba)

Emergency services attend the scene after a building collapsed in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-storey school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba)

A body of a child is recovered from the rubble of a collapsed building in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-storey school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba)

A woman cries as a body of child is recovered from the rubble of a collapsed building in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-storey school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba)

People gather at the scene of a collapsed building in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-storey school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba), APTOPIX

Soldiers provide security at the scene of a collapsed building in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-storey school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba)

A child is recovered from the rubble of a collapsed building in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-storey school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba)

Emergency services attend the scene after a school building collapsed in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-storey school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba)

Emergency services attend the scene after a school building collapsed in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-storey school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba)

Emergency services attend the scene after a school building collapsed in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-storey school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba)

A child is rescued from the rubble of a collapsed building in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-storey school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba)

A body is recovered from the rubble of a collapsed building in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-storey school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba)

Emergency workers attend the scene after a building collapsed in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-story school building collapsed while classes were in session, with some scores of children thought to be inside at the time. (AP Photo/Sunday Alamba)

Emergency workers attend the scene after a building collapsed in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-story school building collapsed while classes were in session, with children thought to be inside at the time. (AP Photo/Sunday Alamba)

Emergency workers attend the scene after a building collapsed in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-story school building collapsed while classes were in session, with scores of school children thought to be inside at the time. (AP Photo/Sunday Alamba)

A child is rescued from the rubble of a collapsed building in Lagos, Nigeria, Wednesday, March 13, 2019. Rescue efforts are underway in Nigeria after a three-story school building collapsed while classes were in session, with scores of school children thought to be inside at the time. (AP Photo/Sunday Alamba)

Emergency and rescue personnel are seen at the site of a building which collapsed in Lagos on March 13, 2019. - At least 10 children were among scores of people missing on March 13, 2019 after a four-storey building collapsed in Lagos, with rescuers trying to reach them through the roof of the damaged structure. The children were attending a nursery and primary school on the top floor of the residential building when the structure collapsed. Police said they believed scores of people were trapped under the rubble. (Photo by SEGUN OGUNFEYITIMI / AFP)

Emergency and rescue personnel are seen at the site of a building which collapsed in Lagos on March 13, 2019. - At least 10 children were among scores of people missing on March 13, 2019 after a four-storey building collapsed in Lagos, with rescuers trying to reach them through the roof of the damaged structure. The children were attending a nursery and primary school on the top floor of the residential building when the structure collapsed. Police said they believed scores of people were trapped under the rubble. (Photo by SEGUN OGUNFEYITIMI / AFP)

Emergency personnel rescue a child at the site of a building which collapsed in Lagos on March 13, 2019. - At least 10 children were among scores of people missing on March 13, 2019 after a four-storey building collapsed in Lagos, with rescuers trying to reach them through the roof of the damaged structure. The children were attending a nursery and primary school on the top floor of the residential building when the structure collapsed. Police said they believed scores of people were trapped under the rubble. (Photo by SEGUN OGUNFEYITIMI / AFP)

Emergency personnel rescue a child at the site of a building which collapsed in Lagos on March 13, 2019. - At least 10 children were among scores of people missing on March 13, 2019 after a four-storey building collapsed in Lagos, with rescuers trying to reach them through the roof of the damaged structure. The children were attending a nursery and primary school on the top floor of the residential building when the structure collapsed. Police said they believed scores of people were trapped under the rubble. (Photo by SEGUN OGUNFEYITIMI / AFP)

Emergency personnel rescue a child at the site of a building which collapsed in Lagos on March 13, 2019. - At least 10 children were among scores of people missing on March 13, 2019 after a four-storey building collapsed in Lagos, with rescuers trying to reach them through the roof of the damaged structure. The children were attending a nursery and primary school on the top floor of the residential building when the structure collapsed. Police said they believed scores of people were trapped under the rubble. (Photo by SEGUN OGUNFEYITIMI / AFP)

Emergency workers attend the scene after a building collapsed in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-story school building collapsed while classes were in session, with scores of school children thought to be inside at the time. (AP Photo/Sunday Alamba)

Emergency workers attend the scene after a building collapsed in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-story school building collapsed while classes were in session, with scores of school children thought to be inside at the time. (AP Photo/Sunday Alamba)

Emergency workers attend the scene after a building collapsed in Lagos, Nigeria, Wednesday March 13, 2019. Rescue efforts are underway in Nigeria after a three-story school building collapsed while classes were in session, with scores of school children thought to be inside at the time. (AP Photo/Sunday Alamba)