Russia and Ukraine trade accusations over the cause of the fire at the Zaporizhzhia nuclear power plant.

The fire at Ukraine's Zaporizhzhia nuclear power plant, which broke out over the weekend, has been put out, according to Russian state media, citing Rosatom. However, both Moscow and Kyiv are still accusing each other, and worries about a nuclear meltdown persist.

For over two years, the largest nuclear power plant in Europe has been illegally occupied by Russian forces. On Sunday, the International Atomic Energy Agency (IAEA) announced that one of the plant's cooling towers was hit by an alleged drone attack.

Sources at East2West told Planet Chronicle Digital that Moscow accused Ukrainian forces of striking the cooling tower of a nuclear power plant with an unmanned aerial vehicle (UAV) just hours after Dmitry Rogozin, the former head of the Russian space agency turned Kremlin representative in Zaporizhzhia, was said to have been at the nuclear power plant.

Rogozin, who has been focusing on the use of UAVs and UAGs in Ukraine, was present at the plant.

In a Sunday night post on X, formerly Twitter, Ukrainian President Volodymyr Zelenskyy accused Russian forces of setting fire to the nuclear plant and claimed that Moscow has been using its security to "blackmail" not only Ukraine but "all of Europe and the world."

""Ukraine is waiting for the world and IAEA to react to Russia's actions at the Zaporizhzhia NPP. Only Ukrainian control can ensure a return to normalcy and complete safety," Zelenskyy stated."

On Sunday evening, the IAEA confirmed that its experts observed "thick dark smoke emanating from the north-western part of the plant following a series of explosions."

The IAEA and Zelenskyy confirmed that the fire had "no impact on nuclear safety" and that radiation levels remained normal.

The nuclear watchdog condemned the threat of continuous attacks in the area, but did not identify who attacked the cooling tower.

The IAEA Director-General, Rafael Mariano Grossi, stated that reckless attacks at the nuclear plant pose a threat to safety and increase the likelihood of a nuclear accident. Immediate action must be taken to stop them.

The IAEA requested immediate access to the cooling tower to determine the extent and possible cause of the event.

But it remains unclear if access was permitted.