Aug 28 (Reuters) -

Ukrainian drones set oil tanks on fire at an depot in

Russia's Rostov region, Russian Telegram channels reported on

Wednesday.

Russia's air defence units destroyed four drones over the

Rostov region overnight, the Russian defence ministry and

Rostov's governor, Vasily Golubev, said on the Telegram

messaging app, but made no mention of an attack on an oil depot.

The Baza Telegram channel, which is close to Russia's

security services, said that three tanks were burning at an oil

depot in the Kamensky district of the Rostov region after two

drones fell on the area.

Videos posted on Russian social media showed what looked

like large tanks ablaze at night. Reuters was able to identify

the location of one of the videos as in Rostov's Kamensky

district.

There was no immediate comment from Ukraine.

A fuel storage depot in the Kamensky district was attacked

in early August as well.

The attack comes while tanks were still on fire at another

Rostov's oil depot, in the Proletarsk district, some 10 days

after a Ukrainian attack, Russian Telegram channels report.

Separately, Alexander Gusev, the governor of the Voronezh

region that borders Ukraine, said debris from a Ukraine-launched

drone over the region sparked a fire "near explosive objects."

Gusev added that there was no detonation.

The fire had been extinguished, Gusev said on Telegram, and

residents from two settlements who were evacuated from their

homes were returning.

The Russian defence ministry said eight attack drones were

destroyed over the Voronezh region, but it provided no further

detail.

Russian officials often do not disclose the full extent of

damage inflicted by Ukrainian attacks.

Both sides deny targeting civilians in the 30-month-old war

that Russia launched with a full-scale invasion on its smaller

neighbour. Kyiv says that its air attacks aim to destroy

energy, transport and military infrastructure that's key to

Moscow's overall war effort.