St Petersburg metro explosion: In picturesPublished4 April 2017Shareclose panelShare pageCopy linkAbout sharingImage source, Getty ImagesImage caption, A blast on a train in St Petersburg's metro left 11 people deadImage source, AFP/Getty ImagesImage caption, Initial reports suggested that there were two explosions on the underground trainImage source, EPAImage caption, Emergency services rushed to the scene at Tekhnologichesky Institute metro station to tend to the woundedImage source, ReutersImage caption, Dozens of injured commuters were carried from Sennaya Ploshchad metro station by emergency servicesImage source, ReutersImage caption, In addition to the reported fatalities, dozens of people were injured in the blastImage source, ReutersImage caption, Russia's Interfax news agency said that the blast may have involved a device filled with shrapnelImage source, ReutersImage caption, As the injured were led from Sennaya Ploshchad metro station, authorities closed the city's entire underground networkImage source, AFPImage caption, Security personnel have been guarding the entrance of the Tekhnologichesky Institut metro stationImage source, AFP/Getty ImagesImage caption, A helicopter landed in the street near the entrance to the station to transfer the injured to hospitalImage source, AFP/Getty ImagesImage caption, Many of those injured in the explosion had to make their way through smoke-filled passages in order to exit the stationImage source, ReutersImage caption, As emergency services tended to the injured in St Petersburg, Moscow metro officials said they were introducing extra security measuresImage source, EPAImage caption, People lit candles and placed flowers at the entrance to Sennaya Ploshchad metro station following Monday's incidentImage source, Getty ImagesImage caption, In Moscow, flowers were placed at a memorial stone reading "Leningrad" as people paid tribute those who lost their livesImage source, AFP/Getty ImagesImage caption, A service was also held at a chapel in Moscow, with prayers for those affected by the blastMore on this storyDeadly blast hits St Petersburg metroPublished3 April 2017