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A suicide bomber killed a 17-year-old student in an information agency building in Moscow, killing three people in the agency. Russian authorities are investigating the relevance of extremist organizations.

It is a correspondent of the shipbuilding in Paris.

<Reporter>

At around 8:50 am local time, an explosion occurred at the entrance of the Federal Security Service building in the center of Arkhangelsk in northern Russia.

The state anti-terrorism committee said a man who had walked into the building pulled explosives out of his bag, and that explosives had exploded in his hand.

The blast killed him in the blast and injured three members of the Federal Security Service.

[Krasnova / Witness: My body shook with the explosion sound. What happened was intuition.]

The Federal Bureau of Investigation says the killer was identified as a 17-year-old student at a local vocational school.

The commission has ordered the case to be terrorist and says it is investigating whether the offender has been linked to extremist organizations.

[Petrenko / Federal Investigative Commission spokesperson: We searched the house of the perpetrator, investigating relatives and people around him.]

Local media reported that the SNS just before the explosion accused the Federal Security Service and posted a message warning the attack.