MOSCOW (WKOW) -- Russian Prime Minister Vladmir Putin is vowing that "terrorists will be destroyed" after a pair of suicide bomb attacks on the Moscow subway system left more than three dozen people dead.
One witness on a subway train this morning says he heard "a bang" and then "smoke was everywhere." Russian TV is airing amateur video from inside one of the targeted stations showing wounded and possibly dead victims sitting and lying on the floor.
Outside both stations, passengers flooded out, many crying and making frantic calls on their cell phones.
Officials are blaming the violence on rebels from the Caucasus region, where violent separatism has spread from Chechnya into neighboring republics.
Russian Police have killed several Islamic militant leaders in the North Caucasus recently, including one last week. The killings raised fears of retaliatory strikes by the militants.
Late last year, Chechen rebels claimed responsibility for a deadly bombing on a train from Moscow to St. Petersburg and last month, a Chechen rebel leader warned "war is coming" to Russian cities.
MOSCOW (WKOW) -- Investigators in Russia say two separate bombings killed dozens in Moscow overnight.
The attacks happened during rush hour on one of the world's busiest subway systems.
Police say at least 37 people were killed and more than 30 others hurt.
They believe two female suicide bombers attacked two separate stations within an hour. The first explosion happened at a train station in central Moscow underneath the building that houses the main offices of the Federal Security Service.
The second blast struck 45 minutes later when the bomber, wearing a belt packed with plastic explosive, set it off as the train's doors opened.
No groups have yet taken responsibility but authorities suspect, based on evidence found at the scene on the bombers' bodies, this was the work of rebels from the troubled Caucasus region that includes Chechnya.
President Barack Obama offered his condolences in a statement Monday morning, saying "the American people stand united with the people of Russia in opposition to violent extremism."