Poland Plane Crash Natıonal Mournıng

epa02119816 A woman stands next to a poster commemorating the victims of the Smolensk plane crash in Warsaw , Poland on 16 April 2010 . Polish President Lech Kaczynski , his wife Mariaa large group of leading Polish state officialspoliticians died at the plane crash in Smolensk , Russia , on 10 April 2010 while on their way to attend ceremonies marking the 70th anniversary of the Katyn massacre . A commemoration for the victims will be held in Warsaw on 17 April .  EPA/FILIP SINGER