Mayor of Moscow Sergey Sobyanin (C) lays flowers to mourn the victims of a fire in a mall in Kemerovo during a ceremony in Moscow, Russia, on March 27, 2018. Russian President Vladimir Putin on Tuesday signed a decree declaring Wednesday a day of national mourning for the victims of a major fire in a mall in the Siberian city of Kemerovo, which killed at least 64 people on March 25. (Xinhua/Evgeny Sinitsyn)