The mission of the International Atomic Energy Agency may go to the Zaporizhzhya nuclear power plant seized by Russia in the coming days, Ukrainian Energy Minister Herman Galushchenko said on Thursday, Reuters reports.

“The visit is planned. We are talking about the coming days – definitely no later than the beginning of September,” Galushchenko said in an interview with Reuters in Kyiv.

Fears of a potential disaster at Europe’s largest nuclear power plant have grown amid intense bombing. Ukraine and Russia accused each other of bombing the plant.

The state nuclear company of Ukraine “Energoatom” announced on Thursday that the fires at the slag pits of the coal-fired power plant near the complex led to the disconnection of the reactors from the power grid. The company accused Russian “occupiers” of disconnection.

Zelensky, confirming earlier comments by an energy official to Reuters, said backup diesel generators were immediately operational to ensure uninterrupted power. Electricity is used for the cooling and safety systems of the NPP.

“If the diesel generators had not been started… if the personnel of our station had not reacted after the power outage, then we would have already been forced to experience the consequences of the radiation accident,” he said in his video address to evening.

Galushchenko told Reuters that it was extremely important that the IAEA mission could see what was happening at the station.