Russian Islamist Militant Group Threatens to Hit Winter Olympics

In Sochi

An Islamic militant group in Russia's North Caucasus claimed responsibility Sunday for twin suicide bombings in the southern city of Volgograd last month and posted a video threatening to strike the 2014 Winter Olympics in Sochi.

There had been no previous claim of responsibility for the bombings, which killed 34 people and heightened security fears before next month's Winter Games.