Russia’s federal security service said that a gunman had burst into one of its regional offices in the far east of the country and opened fire, killing one of its employees and a visitor.

Another visitor was injured in the incident.

The FSB, the successor organization to the soviet KGB, said the attacker had been killed.

The streets close to the FSB office were cordoned off by police cars and personnel, blocking traffic and passersby.

The Tass news agency reported, citing an FSB official the gunman was a local resident, born in 1999, who belonged to an unnamed nationalist group.