The world's worst civil nuclear disaster occurred in 1986 when one of the four reactors of the Chornobyl plant in northwest Ukraine caught fire and exploded.
Ukraine warns of Chornobyl-style crisis after attack on nuclear plant
The world's worst civil nuclear disaster occurred in 1986 when one of the four reactors of the Chornobyl plant in northwest Ukraine caught fire and exploded.
Ukraine warns of Chornobyl-style crisis after attack on nuclear plant
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