A Russian ammunition depot near the border with Ukraine caught fire overnight, as local authorities said a series of blasts had struck three Russian provinces on the border.
Vyacheslav Gladkov, Belgorod regional governor, said the fire at the ammunition depot near the village of Staraya Nelidovka had been extinguished and no civilians were injured.
Separately, Roman Starovoyt, the governor of Russia’s Kursk province, which also borders Ukraine, said that explosions had been heard in Kursk city early on Wednesday, which were most likely the sounds of air defence systems firing.
In Voronezh, the administrative centre of another province adjacent to Ukraine, two blasts were heard and authorities are investigating, according to Russia’s TASS news agency.
It comes just days after fires broke out at two oil depots in the Russian city of Bryansk in what appears to be mounting strikes on Russian territory, with Moscow also accusing Ukraine of attacking a fuel depot in Belgorod earlier this month.