A fireman works at the scene of a fire in a building in the Monastery of Caves in Kiev, Ukraine, Monday, Jan. 14, 2019. Fire has broken out in a building at the renowned Pechersk monastery complex in the Ukrainian capital, Kiev, but is not endangering any significant buildings and there have been no reported injuries. (Ukrainian Emergency Situations Ministry Press Service Photo via AP)

A fireman works at the scene of a fire in a building in the Monastery of Caves in Kiev, Ukraine, Monday, Jan. 14, 2019. Fire has broken out in a building at the renowned Pechersk monastery complex in the Ukrainian capital, Kiev, but is not endangering any significant buildings and there have been no reported injuries. (Ukrainian Emergency Situations Ministry Press Service Photo via AP)

Firefighters try to extinguish a fire in one of the historic building of Kiev-Pechersk Lavra, in Ukrainian capital of Kiev on January 14, 2019. - The fire on the territory of the Kiev-Pechersk Lavra is located on an area of 400 square meters, there are no victims, according to the State Service of Ukraine for Emergencies. Since its foundation as the cave monastery in 1051 the Lavra has been a preeminent center of Eastern Orthodox Christianity in Eastern Europe and is one of the first to establish monasteries of Kievan Rus. (Photo by Sergei SUPINSKY / AFP)

Firefighters try to extinguish a fire in one of the historic building of Kiev-Pechersk Lavra, in Ukrainian capital of Kiev on January 14, 2019. - The fire on the territory of the Kiev-Pechersk Lavra is located on an area of 400 square meters. There are no victims, according to the State Service of Ukraine for Emergencies. Since its foundation as the cave monastery in 1051 the Lavra has been a preeminent center of Eastern Orthodox Christianity in Eastern Europe and is one of the first to establish monasteries of Kievan Rus. (Photo by Sergei SUPINSKY / AFP)

Firefighters try to extinguish a fire in one of the historic building of Kiev-Pechersk Lavra, in Ukrainian capital of Kiev on January 14, 2019. - The fire on the territory of the Kiev-Pechersk Lavra is located on an area of 400 square meters. There are no victims, according to the State Service of Ukraine for Emergencies. Since its foundation as the cave monastery in 1051 the Lavra has been a preeminent center of Eastern Orthodox Christianity in Eastern Europe and is one of the first to establish monasteries of Kievan Rus. (Photo by Sergei SUPINSKY / AFP)

Orthodox believers leave the Kiev-Pechersk Lavra as firefighters try to extinguish a fire in one of the historic building of Kiev-Pechersk Lavra, in Ukrainian capital of Kiev on January 14, 2019. - The fire on the territory of the Kiev-Pechersk Lavra is located on an area of 400 square meters. There are no victims, according to the State Service of Ukraine for Emergencies. Since its foundation as the cave monastery in 1051 the Lavra has been a preeminent center of Eastern Orthodox Christianity in Eastern Europe and is one of the first to establish monasteries of Kievan Rus. (Photo by Sergei SUPINSKY / AFP)

Firefighters try to extinguish a fire in one of the historic building of Kiev Pechersk Lavra, an historic Orthodox Christian monastery in the Ukrainian capital of Kiev on January 14, 2019. - On January 14, a fire broke out at a building of the Kiev Pechersk Lavra. According to the State Emergency Service's Kiev Department, there are no victims. Since its foundation, Kiev Pechersk Lavra, also known as the Kiev Monastery of the Caves, in 1051 the Lavra has been a preeminent center of Eastern Orthodox Christianity in Eastern Europe and is one of the first to establish monasteries of Kievan Rus. (Photo by Sergei SUPINSKY / AFP)

Firefighters try to extinguish a fire in one of the historic building of Kiev Pechersk Lavra, an historic Orthodox Christian monastery in the Ukrainian capital of Kiev on January 14, 2019. - On January 14, a fire broke out at a building of the Kiev Pechersk Lavra. According to the State Emergency Service's Kiev Department, there are no victims. Since its foundation, Kiev Pechersk Lavra, also known as the Kiev Monastery of the Caves, in 1051 the Lavra has been a preeminent center of Eastern Orthodox Christianity in Eastern Europe and is one of the first to establish monasteries of Kievan Rus. (Photo by Sergei SUPINSKY / AFP)

Firefighters try to extinguish a fire in one of the historic building of Kiev Pechersk Lavra, an historic Orthodox Christian monastery in the Ukrainian capital of Kiev on January 14, 2019. - On January 14, a fire broke out at a building of the Kiev Pechersk Lavra. According to the State Emergency Service's Kiev Department, there are no victims. Since its foundation, Kiev Pechersk Lavra, also known as the Kiev Monastery of the Caves, in 1051 the Lavra has been a preeminent center of Eastern Orthodox Christianity in Eastern Europe and is one of the first to establish monasteries of Kievan Rus. (Photo by Sergei SUPINSKY / AFP)

Firefighters try to extinguish a fire in one of the historic building of Kiev Pechersk Lavra, an historic Orthodox Christian monastery in the Ukrainian capital of Kiev on January 14, 2019. - On January 14, a fire broke out at a building of the Kiev Pechersk Lavra. According to the State Emergency Service's Kiev Department, there are no victims. Since its foundation, Kiev Pechersk Lavra, also known as the Kiev Monastery of the Caves, in 1051 the Lavra has been a preeminent center of Eastern Orthodox Christianity in Eastern Europe and is one of the first to establish monasteries of Kievan Rus. (Photo by Sergei SUPINSKY / AFP)

Firefighters try to extinguish a fire in one of the historic building of Kiev Pechersk Lavra, an historic Orthodox Christian monastery in the Ukrainian capital of Kiev on January 14, 2019. - On January 14, a fire broke out at a building of the Kiev Pechersk Lavra. According to the State Emergency Service's Kiev Department, there are no victims. Since its foundation, Kiev Pechersk Lavra, also known as the Kiev Monastery of the Caves, in 1051 the Lavra has been a preeminent center of Eastern Orthodox Christianity in Eastern Europe and is one of the first to establish monasteries of Kievan Rus. (Photo by Sergei SUPINSKY / AFP)

Firefighters try to extinguish a fire in one of the historic building of Kiev Pechersk Lavra, an historic Orthodox Christian monastery in the Ukrainian capital of Kiev on January 14, 2019. - On January 14, a fire broke out at a building of the Kiev Pechersk Lavra. According to the State Emergency Service's Kiev Department, there are no victims. Since its foundation, Kiev Pechersk Lavra, also known as the Kiev Monastery of the Caves, in 1051 the Lavra has been a preeminent center of Eastern Orthodox Christianity in Eastern Europe and is one of the first to establish monasteries of Kievan Rus. (Photo by Sergei SUPINSKY / AFP)

Firefighters try to extinguish a fire in one of the historic building of Kiev Pechersk Lavra, an historic Orthodox Christian monastery in the Ukrainian capital of Kiev on January 14, 2019. - On January 14, a fire broke out at a building of the Kiev Pechersk Lavra. According to the State Emergency Service's Kiev Department, there are no victims. Since its foundation, Kiev Pechersk Lavra, also known as the Kiev Monastery of the Caves, in 1051 the Lavra has been a preeminent center of Eastern Orthodox Christianity in Eastern Europe and is one of the first to establish monasteries of Kievan Rus. (Photo by Sergei SUPINSKY / AFP)

A policeman (2ndR) stands guard as firefighters try to extinguish a fire in one of the historic building of Kiev Pechersk Lavra, an historic Orthodox Christian monastery in the Ukrainian capital of Kiev on January 14, 2019. - On January 14, a fire broke out at a building of the Kiev Pechersk Lavra. According to the State Emergency Service's Kiev Department, there are no victims. Since its foundation, Kiev Pechersk Lavra, also known as the Kiev Monastery of the Caves, in 1051 the Lavra has been a preeminent center of Eastern Orthodox Christianity in Eastern Europe and is one of the first to establish monasteries of Kievan Rus. (Photo by Sergei SUPINSKY / AFP)

Firefighters try to extinguish a fire in one of the historic building of Kiev Pechersk Lavra, an historic Orthodox Christian monastery in the Ukrainian capital of Kiev on January 14, 2019. - On January 14, a fire broke out at a building of the Kiev Pechersk Lavra. According to the State Emergency Service's Kiev Department, there are no victims. Since its foundation, Kiev Pechersk Lavra, also known as the Kiev Monastery of the Caves, in 1051 the Lavra has been a preeminent center of Eastern Orthodox Christianity in Eastern Europe and is one of the first to establish monasteries of Kievan Rus. (Photo by Sergei SUPINSKY / AFP)

A policeman stands guard as firefighters try to extinguish a fire in one of the historic building of Kiev Pechersk Lavra, an historic Orthodox Christian monastery in the Ukrainian capital of Kiev on January 14, 2019. - On January 14, a fire broke out at a building of the Kiev Pechersk Lavra. According to the State Emergency Service's Kiev Department, there are no victims. Since its foundation, Kiev Pechersk Lavra, also known as the Kiev Monastery of the Caves, in 1051 the Lavra has been a preeminent center of Eastern Orthodox Christianity in Eastern Europe and is one of the first to establish monasteries of Kievan Rus. (Photo by Sergei SUPINSKY / AFP)

Policemen stand guard as firefighters try to extinguish a fire in one of the historic building of Kiev Pechersk Lavra, an historic Orthodox Christian monastery in the Ukrainian capital of Kiev on January 14, 2019. - On January 14, a fire broke out at a building of the Kiev Pechersk Lavra. According to the State Emergency Service's Kiev Department, there are no victims. Since its foundation, Kiev Pechersk Lavra, also known as the Kiev Monastery of the Caves, in 1051 the Lavra has been a preeminent center of Eastern Orthodox Christianity in Eastern Europe and is one of the first to establish monasteries of Kievan Rus. (Photo by Sergei SUPINSKY / AFP)