At least 45 others were injured in the incident. The explosive device was contained in a briefcase. A second explosive device was found and defused at Ploshchad Vosstaniya metro station. The suspected perpetrator was named as Akbarzhon Jalilov, an ethnic Uzbek born in
Prior to the attack, Chechen separatists had been responsible for a number of terrorist attacks in
Vladimir Putin was visiting
On 3 April 2017, a device containing 200–300 grams (0.44–0.66 lb) of explosives detonated on a train traveling through a tunnel between the Sennaya Ploshchad and Tekhnologichesky Institut stations of the Saint Petersburg Metro. According to a statement from the Ministry of Emergency Situations, the bomb was detonated on the third car of the train. Eyewitnesses said the blast occurred near the door and immediately after the explosion, smoke filled the platform. Video from social media showed multiple victims on the platform and a metal door twisted due to the force of the blast. Following reports of the explosion, all metro stations in
A second bomb was discovered at Ploshchad Vosstaniya station; it was subsequently disarmed. The device had ball bearings, screws, and shrapnel and was hidden within a fire extinguisher containing an equivalent of about 1 kilogram (2.2 lb) of TNT. Jalilov’s DNA was found on a bag which containted the extinguisher, suggesting that he intentionally left this bag inside a train vehicle as witnessed by certain passengers.
Security was heightened after the attack. Metal detectors, installed countrywide following the site of another attack seven years previously, were all put into use (they were not in use for several years prior). The Moscow Metro security department said they were ready to assist the Saint Petersburg Metro in case of any help. Local media reported that authorities had found suspicious packages in three
There has so far been no claim of responsibility for the attack. At 16:30 local time (13:30 UTC) on 3 April 2017, the attack was recognised as an "act of terrorism" by the Investigative Committee.
After the attack, dozens of taxi drivers and users of car sharing services such as Uber and Gett started driving people free of charge in the area of Saint Petersburg Ring Road, due to the whole metro system being closed and other means of public transportation overwhelmed by passengers; other drivers encouraged hitchhiking.