Young Ukrainians hold candles during a ceremony near the memorial for ‘liquidators’ who died during cleaning-up works after the Chernobyl nuclear power plant disaster.
In the early hours of April 26, 1986, the Unit 4 reactor at the Chernobyl power station blew apart.
Facing nuclear disaster on unprecedented scale, Soviet authorities tried to contain the situation by sending thousands of ill-equipped men into a radioactive maelstrom.
The men barely lasted more than a few weeks suffering lingering, painful deaths.
The explosion of Unit 4 of the Chernobyl nuclear power plant is still regarded the biggest accident in the history of nuclear power generation.
Photo EPA/Sergey Dolzhenko