A suspected female suicide bomber blew herself up on a bus packed with students in southern Russia on Monday, killing six people and raising security fears less than four months before the Winter Olympics. The attack in the Volga River city of Volgograd, which also injured more than 30 people, was the deadliest outside the volatile North Caucasus in the past three years.
An official at the Investigative Committee - Russia's equivalent to the US Federal Bureau of Investigations - said the suspected bomber was the wife of a North Caucasus rebel commander. Footage broadcast on state television showed a green and white city bus standing mangled in the middle of the street, its windows blown out on the left side.