A 17-year-old boy blew himself up in a "terrorist" attack that injured three officers of Russia's domestic FSB intelligence service, according to the country's Investigative Committee.
The local boy took an improvised explosive device into the Federal Security Service building in the northern city of Arkhangelsk today, the committee said in a statement.
The device "exploded in his hands" causing fatal injuries, according to the National Anti-Terrorism Committee.
Russian President Vladimir Putin has been informed of the incident, Kremlin spokesman Dmitry Peskov told reporters on a conference call.
The teen set the bomb off at the entrance of the building, removing the improvised explosive device from a bag.