Eight people were killed and four were wounded in Russian artillery shelling in the eastern Ukrainian town of Toretsk in Donetsk region on Thursday, the regional governor said.

The shelling hit a public transport stop where people had gathered, Governor Pavlo Kyrylenko wrote on Telegram. Three children were among the wounded, he said.

Andriy Yermak, the Ukrainian president's chief of staff, said the attack was "another terrorist act" by Russia, and repeated his calls for other nations to declare Russia a state sponsor of terror, a move which would bring further sanctions on Moscow.

Russia has previously denied targeting civilians and has rejected allegations of war crimes in what it calls a "special military operation" aimed at demilitarising and "denazifying" Ukraine. Ukraine says it was invaded without provocation. (Reporting by Natalia Zinets and Max Hunder; Writing by Tom Balmforth; Editing by Alison Williams and Bernadette Baum)