2010 Moscow Metro bombings
The 2010 Moscow Metro bombings were suicide bombings carried out by two female Islamic terrorists during the morning rush hour of March 29, 2010, at two stations of the Moscow Metro (Lubyanka and Park Kultury), with roughly 40 minutes in between. At least 40 people were killed, and over 100 injured. Russian officials called the incident "the deadliest and most sophisticated terrorist attack in the Russian capital in six years", a reference to the Avtozavodskaya and Rizhskaya bombings in 2004. At the time of the attacks, an estimated 500,000 people were commuting through Moscow's metro system. Initial investigation indicated that the bombings were perpetrated by the militant Islamist Caucasus Emirate group.