MOSCOW — A female suicide bomber blew herself up on a city bus in southern Russia on Monday, killing six people and injuring about 30 others, officials said. The attack in Volgograd added to security fears ahead of the Winter Olympics in Sochi.
The suspected bomber was from the North Caucasus, a region in southern Russia where an Islamic insurgency has been simmering for more than a decade after two separatist wars in Chechnya. A local official said the attacker was married to an Islamic militant.
No one immediately claimed responsibility for the bombing, but it was the first outside the North Caucasus since Chechen rebel leader Doku Umarov three months ago called for a resumption of attacks on civilians and urged militants to target the Sochi Games.
The suspected bomber, identified as Naida Asiyalova, 30, was from Dagestan, one of the predominantly Muslim republics in the North Caucasus, said Vladimir Markin, the spokesman for the Investigative Committee, Russia’s main investigative agency.
The Tsarnaev brothers, accused of carrying out the Boston Marathon bombings, have roots in Dagestan.