Muscovites laid flowers and lit candles at the Leningrad monument of the Russian Hero Cities memorial along the Kremlin Wall to mourn St.Petersburg Metro blast victims.An explosion in the St. Petersburg Metro has left 11 people dead and 45 injured.COURTESY: RT's RUPTLY video agency, NO RE-UPLOAD, NO REUSE - FOR LICENSING, PLEASE, CONTACT http://ruptly.tvRT LIVE http://rt.com/on-airSubscribe to RT! http://www.youtube.com/subscription_center?add_user=RussiaTodayLike us on Facebook http://www.facebook.com/RTnewsFollow us on Twitter http://twitter.com/RT_comFollow us on Instagram http://instagram.com/rtFollow us on Google+ http://plus.google.com/+RTListen to us on Soundcloud: https://soundcloud.com/rttvRT (Russia Today) is a global news network broadcasting from Moscow and Washington studios. RT is the first news channel to break the 1 billion YouTube views benchmark.