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Suicide bomber attacks Russian bus

A damaged bus is examined by experts in Volgograd, Monday, Oct. 21, 2013. The blast was caused by "an unspecified explosive device," the National Anti-Terrorism Committee said in a statement. A total of 40 people were on the city bus at the time of the explosion, the Emergency Situations Ministry said. At least five died and some people were injured. (AP Photo/ Sergei Ivanishin)

Suicide bomber attacks Russian bus

A female suicide bomber attacked a bus in southern Russia on Monday, authorities said, killing at least six people in the deadliest such blast outside the volatile North Caucasus region in nearly three years.

The bombing in Volgograd was likely to raise fears of further attacks by Islamist militants as Russia prepares to host the 2014 Winter Olympics in February in the Black Sea resort city of Sochi, not far from the mainly Muslim North Caucasus. (Reuters)