Blasts in Moscow Metro, 37 killed

Two explosions, one of them blamed on a suicide bomber, rocked Moscow's subway system Monday morning as it was jam-packed with rush-hour passengers, killing at least 37 people, officials said.

Russian prosecutors said they had launched a "terrorism probe." More than 25 people were also wounded, officials said.

Britain's Sky News reported that a female suicide bomber was believed to be responsible for one of the blasts.