Five people were killed and 46 injured in a Ukrainian attack on the southwestern Russian city of Belgorod late on Friday, the local governor said, the latest in a series of strikes by Ukraine on the city in recent months.

Vyacheslav Gladkov said 37 of the injured, including seven children, were taken to hospitals in the city, which lies 40 km (25 miles) north of the border with Ukraine.

Video filmed from inside a vehicle, posted on social media and purporting to show the attack, showed a car being blown up while moving along a road. Seconds later another explosion is seen metres away. Reuters could not immediately verify the authenticity of the video.