VOLGOGRAD — Russian security forces hunted Tuesday for the husband of a suicide bomber a day after she blew herself up on a bus in southern Russia, killing six people and wounding more than 30 others. They also raised the possibility that Moscow, not Volgograd, was the bomber's original target. Investigators say 30-year-old Naida Asiyalova, a native of the volatile province of Dagestan in Russia's North Caucasus region, was married to an ethnic Russian man who had joined militants. They say her husband, Dmitry Sokolov, has become a top rebel expert in explosives and could have been involved in equipping his wife for the suicide mission. Sokolov has been on the run since he left his home in a Moscow suburb in the summer of 2012. The bombing Monday in the southern Volgograd region was the first attack against a civilian target outside the volatile North Caucasus region in years, raising fears of a new wave of terror just three-and-half months before the start of the 2014 Winter Games in Sochi. Volgograd lies 650 km northeast of the North Caucasus, where an insurgency has been simmering for more than a decade after two separatist wars in Chechnya. In Dagestan, the center of the insurgency, bombings and shootings occur almost daily. Dmitry Yudin, a student who suffered a concussion and arm wound, said he had noticed Asiyalova when she boarded the bus because she wore a dark Islamic headscarf. He told The Associated Press the suspected attacker looked "calm and collected" and kept a low profile. — AP
