People lay flowers the entrance of metro stations

MOSCOW, RUSSIA - JULY 16: Women lay flowers at the entrance to Park Pobedy and Slaviansky Boulevard metro stations after three subway cars derailed on July 15, in Moscow, Russia. At least 20 people died and dozens wounded as three cars of the subway derailed in the Moscow metro in a tunnel between Slaviansky Boulevard and Park Pobedy (Victory Park) stations in the west on the city. (Sefa Karacan - Anadolu Agency)