In January 2010, in a statement about the upcoming "military actions", Umarov said the re-created Riyad-us-Saliheen Brigade of Martyrs will now operate in the Russian cities outside the Caucasus and "the war will come to their homes", possibly indicating the new wave of bombings such as those conducted by the group in Moscow and elsewhere in 2002–2004 under Basayev's orders. On 31 March 2010, Umarov claimed responsibility for personally ordering the Moscow Metro bombings which took the lives of 40 civilians. He warned that more attacks were to come on Russian soil because of perceived repressions of Chechnya by Prime Minister Putin. On 7 February 2011, Umarov claimed responsibility in a video posted online for ordering a suicide bombing at Domodedovo International Airport, Russia's busiest airport. The bombing killed 36 people, and was described by Umarov as a "special operation" targeting the Russian society and Putin personally. His practice of claiming responsibility for such attacks resulted in some media dubbing him "Russia's bin Laden."