Ukrainians mark the 31th anniversary of Chernobyls disaster

A general view of the Chernobyl nuclear power plant, in Chernobyl, Ukraine, 26, April 2017. On 26 April 1986 the Unit 4 reactor at the Chernobyl power station blew apart. The explosion of Unit 4 of the Chernobyl nuclear power plant is still regarded the biggest accident in the history of nuclear power generation. Ukrainians on 26 April 2017 mark the 31st anniversary of the Chernobyl disaster.