Russia accused Ukraine on Sunday of carrying out overnight drone attacks that ignited a fire at a nuclear power plant in the western Kursk region, as Kyiv marked 34 years of independence.

Multiple energy and power facilities were targeted in the strikes, according to Russian officials. A transformer at the Kursk nuclear facility was damaged, sparking a blaze that was quickly extinguished, the plant’s press service reported on Telegram. No casualties were reported, and radiation levels remained within normal limits.

The International Atomic Energy Agency (IAEA) said it was aware of reports that the transformer fire was linked to “military activity” but had not independently confirmed the incident.

Elsewhere, firefighters responded to a separate blaze at the port of Ust-Luga in Russia’s Leningrad region, home to a key fuel export hub. Regional officials said debris from downed Ukrainian drones sparked the fire, which followed reports that 10 drones had been intercepted in the area.

Russia’s Defense Ministry said its air defenses destroyed 95 Ukrainian drones overnight across Russian territory. Meanwhile, Ukraine’s air force reported that Moscow launched 72 drones and decoys, along with a cruise missile, into Ukrainian airspace, of which 48 drones were intercepted or jammed.

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This article contains reporting by The Associated Press