Two explosions hit the Moscow subway system on Monday morning, killing at least 37 people, Russian news agencies reported.

The Emergency Situations Ministry said the first blast, which struck the Lubyanka station at 7:56 a.m. (0356 GMT), had killed at least 25 people and injured at least 10 others, the Itar-Tass news agency reported.

Shortly afterwards, an explosion hit another subway station, killing at least 12 people with 12 others injured at the Cultural Park subway station.

The following is some major blasts in Russia since 2009:

On Feb. 19, 2010, one policeman was killed and 16 others were injured in two explosions in Russia's troubled North Caucasus republic of Ingushetia.

On Dec, 17, 2009, a suicide car bomber attacked a police checkpoint in Ingushetia, killing himself and wounding at least 23 others.

On Nov. 27, 2009, at least 27 people were killed and over 100 others injured in the derailment of a Russian express train. The train traveling from Moscow to St. Petersburg went off the tracks near the town of Bologoye on the border between the Tver and Novgorod regions. Preliminary investigations indicated the derailment was caused by a bomb blast.

On Nov. 13 and Nov. 23, 2009, ten people were killed and dozens of others injured after two blasts ripped through the military ammunition depot in central Russian city of Ulyanovsk.

On Aug. 17, 2009, a truck packed with explosives crashed through the gates of a police building in Ingushetia, triggering a powerful blast that killed at least 20 people and injured 138.

On July 26, 2009, four police officers and a suicide bomber were killed in a blast at an entrance of a concert hall in Russia's North Caucasus republic of Chechnya, injuring 10 others.

On March 5, 2009, six people were killed and two others injured when a landmine exploded in a village of the Nazran district in Ingushetia.