The UN's nuclear watchdog said on Tuesday that it saw "no immediate nuclear safety risk" at Europe's biggest atomic plant after a hydroelectric dam in southern Ukraine was damaged.

This satellite image provided by Maxar Technologies shows an overview of the Kakhovka dam in southern Ukraine on Monday, June 5, 2023. (Photo: AP)

"The IAEA is aware of reports of damage at Ukraine's Kakhovka dam; IAEA experts at Zaporizhzhia Nuclear Power Plant are closely monitoring the situation; no immediate nuclear safety risk at plant," the International Atomic Energy Agency (IAEA) said in a tweet.

The dam sits on the Dnipro river, which provides cooling water for the plant.