Ukrainian helicopters have carried out a strike on a fuel storage facility in Russia's western town of Belgorod, the local governor said on Friday.

"There was a fire at the petrol depot because of an air strike carried out by two Ukrainian army helicopters, who entered Russian territory at a low altitude," Vyacheslav Gladkov wrote on his Telegram channel. 

Two people were hurt in Friday's fire, Gladkov said, and residents of three streets of the city were being evacuated.

Ukraine has not claimed responsibility for the incident.

(With input from Reuters, AFP)