RUSSIAN FEDERATION, Moscow : Medics help an injured woman outside the Park Kulturi metro station in Moscow on March 29, 2010 after two women suicide bombers blew themselves up on packed metro trains in central Moscow's morning rush hour, killing at least 34 people in the deadliest attacks in the Russian capital for over a decade. The first explosion struck on a train that had stopped in the Lubyanka station, near the headquarters of the FSB security service, and the second one went off in a carriage of a train on the platform at the Park Kulturi metro station.