A Russian fire broke out at the Zaporizhia nuclear power plant overnight from Thursday to Friday, raising fears of a catastrophe.

The pictures show that a catastrophe was certainly averted in Zaporizhia. A video received New York Times, Published this Saturday, gives the interior of the nuclear power plant, located in southern Ukraine, as Russian forces attacked it overnight from Thursday to Friday. One of the loudspeakers in the facility sounds a warning in Russian, apparently aimed at outside soldiers.

“Stop shooting at the nucleus,” said a voice. “Stop firing immediately. You are endangering the security of the entire world. An important part of the Zaporizia power plant may be out of order. We can not restore it.”

The American newspaper states that the video was sent to them by a source with links to the local government. By analyzing the archive videos and photographs of the plant, the newspaper’s visual investigation team was able to confirm that it was within Zaporizia.

Other videos of the plant have reported that at least one building caught fire the night after the Russian fire. According to a press release from the Nuclear Regulator of Ukraine, there were no signs of ultimately increasing radiation levels and no critical equipment was affected. Words immediately confirmed by the International Atomic Energy Agency (IAEA).

Never endanger the “physical integrity” of a plant

But a video obtained by an American newspaper shows just how serious the situation was in the attack on Zaporizhia, the main Ukrainian nuclear power plant and the largest nuclear power plant in Europe.

IAEA Director-General Rafael Mariano Grossi told a news conference Friday morning that the “physical integrity” of a nuclear site should never be compromised, “whether it is a reactor or fuel or radioactive waste.”

If the fire can be extinguished, the site of the nuclear plant will be occupied by Russian troops, according to the Nuclear Site Inspection Agency. She makes sure the site is still managed by employees.

Russia has denied the allegations in a statement issued Friday stating “Similar, baseless allegations concerning Russia’s intelligence have been made more than once.