A police car arriving at the Audiencia Nacional on January 27, 2023, in Madrid (Spain). The National Police arrested on Wednesday, January 25, in Miranda de Ebro (Burgos), a man for his alleged connection with the sending of the explosive letters that last November were sent both to the President of the Government, Pedro Sánchez, and to the Embassy of Ukraine; the Embassy of the United States in Madrid; the company Instalaza in Zaragoza; the European Union Satellite Center located at the Torrejón Air Base and the Ministry of Defense. A security guard at the Ukrainian Embassy was injured by the explosion of one of the devices. Sources of the investigation have confirmed that he is a 74 years old retired man and that he has been arrested in the mentioned locality. 27 JANUARY 2023;MADRID;AUDIENCIA NACIONAL;JUDICIAL DISPOSITION;MAILING LETTERS;PIXELADA Gustavo Valiente / Europa Press 01/27/2023 (Europa Press via AP)

A police car arriving at the Audiencia Nacional on January 27, 2023, in Madrid (Spain). The National Police arrested on Wednesday, January 25, in Miranda de Ebro (Burgos), a man for his alleged connection with the sending of the explosive letters that last November were sent both to the President of the Government, Pedro Sánchez, and to the Embassy of Ukraine; the Embassy of the United States in Madrid; the company Instalaza in Zaragoza; the European Union Satellite Center located at the Torrejón Air Base and the Ministry of Defense. A security guard at the Ukrainian Embassy was injured by the explosion of one of the devices. Sources of the investigation have confirmed that he is a 74 years old retired man and that he has been arrested in the mentioned locality. 27 JANUARY 2023;MADRID;AUDIENCIA NACIONAL;JUDICIAL DISPOSITION;MAILING LETTERS;PIXELADA Gustavo Valiente / Europa Press 01/27/2023 (Europa Press via AP)

Two police officers walk through the Audiencia Nacional on January 27, 2023, in Madrid (Spain). The National Police arrested on Wednesday, January 25, in Miranda de Ebro (Burgos), a man for his alleged connection with the sending of the explosive letters that last November were sent both to the President of the Government, Pedro Sánchez, and to the Embassy of Ukraine; the Embassy of the United States in Madrid; the company Instalaza in Zaragoza; the European Union Satellite Center located at the Torrejón Air Base and the Ministry of Defense. A security guard at the Ukrainian Embassy was injured by the explosion of one of the devices. Sources of the investigation have confirmed that he is a 74 years old retired man and that he has been arrested in the mentioned locality. 27 JANUARY 2023;MADRID;AUDIENCIA NACIONAL;JUDICIAL DISPOSITION;MAILING LETTERS;PIXELADA Gustavo Valiente / Europa Press 01/27/2023 (Europa Press via AP)