Thirty-six years after the world's worst nuclear disaster, the head of the International Atomic Energy Agency said Tuesday that Russian troops risked causing an accident with their "very, very dangerous" seizure of the Chernobyl nuclear power plant in Ukraine.
Standing under an umbrella during a rain shower outside the damaged plant, agency Director-General Rafael Mariano Grossi said that while radiation levels are normal, the situation is still "not stable." Nuclear authorities have to "keep on alert."
Russian troops moved into the radiation-contaminated Chernobyl exclusion zone in February on their way toward the Ukrainian capital.