Russian Gerbera drones, previously used as decoys, have now assumed a new role, according to the Ukrainian portal Defense Express. These foam-built constructions are being outfitted with small warheads.

President Volodymyr Zelensky of Ukraine called the damage “significant” but said there were no signs of radiation leaks. A Kremlin spokesman denied that Russia had carried out the strike.

Ukrainian President Volodymyr Zelenskiy said on Friday that a Russian drone had caused significant damage to the radiation containment shelter at the disused Chornobyl nuclear power plant overnight.