Ukraıne Chernobyl

epa02124718 A picture made available on 20 April 2010 shows a graffiti on a wall of the deserted city of Pripyat , Ukraine , 19 April 2010 . Seven artists from Belarus , RussiaGermany painted graffiti to mark the Nuclear power plant accident anniversary . One of two reactors at the Chernobyl nuclear power station exploded in a power test in 1986 . The Pripyat city population of 47 , 000 was evacuated after the explosion . Ukrainians will mark the 24 anniversary of the world ' s worst nuclear power accident on 26 April .  EPA/SERGEY DOLZHENKO