The Russian investigators currently looking into the terrorist attack on the St. Petersburg subway believe that the bomb could have been detonated by a man whose body parts have been discovered around the train, which would make this a suicide attack.

The body count has risen to 14

Originally reported as 11, the number of confirmed deaths in the St. Petersburg attack is now 14, and the number of injured casualties has risen from 40 to close to 50. The death count has risen because three more people died in hospital. The prime suspect has been named by Kyrgyzstan national security as 22-year-old Akbarzhon Jalilov, a native who’s been living in Russia as a citizen for the last six years.

However, it has not yet been confirmed if he’s the one who planted the second bomb that was found at another station and defused before it could be detonated.

No terrorist group has come forward to claim responsibility for the St. Petersburg attack, although ISIS has done so for attacks on Russia in the past. Authorities within the city have announce three days will be dedicated to mourning the attack.