Aftermath of a blast in St. Petersburg metro

People lays flowers outside Tekhnologicheskiy Institute metro station to pay tribute for victims of an explosion in St. Petersburg metro in Saint Petersburg, Russia, 04 April 2017. Russian police continue investigations after 14 people were killed and dozens injured in St Petersburg following explosions between two of the city's underground stations. The suspect is reportedly a native of Kyrgyzstan named as Akbarzhon Jalilov who obtained Russian citizenship, according to the Central Asian country's security service. Authorities in St Petersburg have declared three days of mourning.