A look back at world’s worst nuclear power plant disaster
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In the early hours of 26 April 1986, Reactor 4 at the Chernobyl Nuclear Power Plant exploded after a planned safety test went catastrophically wrong. The Chernobyl disaster was the result of a chain of critical errors — and its fallout was unprecedented.
The nuclear disaster at Chernobyl continues to haunt Ukraine, heightened by attacks hitting the country's nuclear plants.
Photos of the infamous nuclear Chernobyl site show the abandoned power plant frozen in time — with a control panel still lit up ahead of the 40th anniversary of the unprecedented disaster.