Police officers work after an explosion next to the entrance to the Russian Federal Security Service (FSB) building, in Arkhangelsk, Russia, October 31, 2018. 31.10.2018#5683377
Police and fire fighting vehicles are pictured after an explosion next to the entrance to the Russian Federal Security Service (FSB) building, in Arkhangelsk, Russia, October 31, 2018. 31.10.2018#5683371
Police officer with a dog inspects cars after an explosion next to the entrance to the Russian Federal Security Service (FSB) building, in Arkhangelsk, Russia, October 31, 2018. 31.10.2018#5683357
Police officers work after an explosion next to the entrance to the Russian Federal Security Service (FSB) building, in Arkhangelsk, Russia, October 31, 2018. 31.10.2018#5683349
Police officers work after an explosion next to the entrance to the Russian Federal Security Service (FSB) building, in Arkhangelsk, Russia, October 31, 2018. 31.10.2018#5683347
Police officers work after an explosion next to the entrance to the Russian Federal Security Service (FSB) building, in Arkhangelsk, Russia, October 31, 2018. 31.10.2018#5683343