epa02097560 Moscow's Mayor Yuri Luzhkov (front R) speaks in front of the Park Kultury metro station entrance in Moscow, Russia, 29 March 2010. At least 35 persons were killed in separate blasts on Moscow‘s Metro train station which the Russian secret service FSB said were carried out by female suicide attackers. Around 40 other persons were injured in the blasts at the Lubyanka station at 7:56 am (0356 GMT) and 44 minutes later at the Park Kultury station. Initial investigations indicated that the explosive devices weighed 1.5 kilograms and 3 kilograms. EPA/VIKTOR VASENIN/ROSSIYSKAYA GAZETA

epa02097694 Muscovites put flowers and a candle in the center of Lubyanskaya square at the entrance of Lubyanka metro station after two explosions in Moscow, Russia 29 March 2010. Two morning metro blasts at Lubyanka and Park Kultury metro stations killed 37 people and injured 40, according to the latest data. EPA/SERGEI CHIRIKOV