LONDON -- A large fire was burning at a Russia n military airfield early on Thursday after it was targeted by drones overnight, officials said.

Videos circulating on Russia social media depicted fires and thick black smoke ascending from the Marinovka airfield near Volgograd in southern Russia, which the region’s governor confirmed was attacked by multiple drones overnight.

Governor Andrey Bocharov asserted that the drones were shot down but acknowledged one fell, leading to a fire.

Other videos circulating online appear to capture the moment of the attack, showing the sound of gunfire followed by explosions near the air base.

The reported attack comes as Ukraine intensifies its targeting of Russian airbases in the midst of its incursion into Russia.

Last week, Ukrainian forces launched their most extensive drone offensive of the war, targeting four airfields in western Russia. On Wednesday, Ukraine even appeared to strike an airfield in Russia’s far north, near Murmansk, within the Arctic Circle.

An extensive fire is still expanding at a primary fuel storage facility in Russia’s southern Rostov region, which has now been burning uncontrollably for five days following a drone strike.

Striking videos showcased immense black smoke clouds rising from the facility, where enormous fuel tanks have continuously exploded. Another video captured firefighters rapidly departing as a tank detonated.

This is a developing story, check back for updates.