On April 26, 1986, Reactor No. 4 at the Chernobyl power plant experienced a sudden power surge, which led to a series of explosions. The ensuing fire and release of radioactive materials resulted in ...

Since then, about 50 people have died from radiation sickness. That includes 28 workers and firefighters who were killed at the 1986 nuclear accident at Chernobyl in what is now Ukraine.