An overnight Ukrainian drone attack on an oil depot near Russia’s Black Sea resort of Sochi sparked a major fire, Russian officials said Sunday, as the two countries traded strikes. More than 120 firefighters attempted to extinguish the blaze, sparked after debris from a downed drone struck a fuel tank, Krasnodar regional Gov. Veniamin Kondratyev said on Telegram. Videos on social media appeared to show huge pillars of smoke billowing above the oil depot. Russia’s civil aviation authority, Rosaviatsia, temporarily stopped flights at Sochi’s airport.

At least three are killed in several regions of Russia while fire breaks out at an oil refinery in central Russia.

120 firefighters battle blaze at Sochi oil depot after Ukrainian drone attack, disrupting flights and raising tensions.