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.

Within three months of the Chernobyl disaster, more than 30 people died of acute radiation sickness. Today, scientists estimate that tens, perhaps even hundreds, of thousands of people were ...

CHERNOBYL NUCLEAR POWER STATION ... The Kremlin denied it was responsible. Radiation levels at the shuttered plant in the Kyiv region — site of the world’s worst nuclear accident — have ...