On 3 April 2017 an improvised explosive device detonated in a metro car at 14:40 on the stretch between metro stations "Sennaya square" and "Institute of Technology" in St. Petersburg, Russia. There are victims: 14 people died, 77 were injured. Another explosive device was found and defused at the station "Ploschad Vosstaniya" by station officer Albert Sibirsky. Upon explosion, the Investigatory Committee of Russia opened a criminal case under article 205 (terrorist attack). According to preliminary data, the explosion in the train station was committed by a suicide bomber.