KYIV, Ukraine—Ukraine and Russia accused each other Wednesday of planning to attack one of the world’s largest nuclear power plants, but neither side provided evidence to support their claims of an imminent threat to the facility in southeastern Ukraine that is under the control of Russian troops.
The Zaporizhzhia Nuclear Power Plant has been a focus of concern since Moscow’s forces took control of it and its staff in the early stages of the war. Russia and Ukraine have regularly traded blame over shelling near the plant that caused power outages. Over the last year, the U.N.’s atomic watchdog repeatedly expressed alarm over the possibility of a radiation catastrophe like the one at Chernobyl after a reactor exploded in 1986….