Russia was evacuating people on Friday from parts of its western region of Lipetsk, after a "massive attack" by Ukrainian drones caused explosions, disrupted power supply, and wounded six people, regional governor Igor Artamonov said.

Four villages were being evacuated after a state of emergency was declared in the Lipetsk municipal district, Artamonov said on the Telegram messaging app, some of them situated near an air force base.

Russian media on Friday also reported a fire had broken out at the air base outside the city of Lipetsk, around 300 kilometers from the border with Ukraine, without specifying the cause.

Ukrainian authorities have not reported any strikes in the Lipetsk region.

(With input from Reuters)