Several oil storage tanks in the town of Azov in Russia's southwestern Rostov region caught fire overnight, regional governor Vasily Golubev said.
First responders have been dispatched to the site, according to Golubev. He noted that nobody was hurt in the attack.
"According to preliminary data, there are no casualties," Vasily Golubev wrote on his Telegram-channel.
Russia's ministry of emergency situations said that the fire had spread across 5,000 cubic metres, and that several dozen firefighters with 39 pieces of equipment were battling the blaze.
