Yesterday, Foreign Ministry spokesman Ivan Nechaev said that a U.N. proposal to demilitarise the area around the nuclear plant was "unacceptable".

The Zaporizhzhia nuclear plant, Europe's largest, was occupied by Russia in March. It remains near the frontline, and has repeatedly come under fire in recent weeks, raising fears of a nuclear disaster. Both Russia and Ukraine have accused each other of shelling the facility.

(Reporting by Reuters)