DTEK said a bus carrying workers after a shift in the Dnipropetrovsk region had been targeted in Sunday's attack. At least 15 people were injured, State Emergency Services said.

Earlier, at least two others were killed and nine injured in separate Russian attacks overnight and on Sunday. The victims included six people hurt when a drone hit a maternity hospital in Zaporizhzhia. Two were women giving birth at the time of the strike.

In a post on Telegram, Zaporizhzhia regional head Ivan Fedorov called it further "proof of a war directed against life". BBC Verify confirmed the site was Maternity Hospital No.3 on Bocharova Street in the east of the city.

Footage shared across social media carried the watermarks of national and local administrations and showed offices, rooms with beds for patients, and a children's room with the windows broken and covered in debris.

Some footage showed degrees of fire damage, while two videos showed a fire still burning on the first storey. Another showed fire fighters breaking down interior doors and ferrying patients away. (BBC)