Syrian regime and Russian air strikes on Saturday killed 19 civilians, eight of them children, in the country's last major opposition bastion, a war monitor said.

The air raids in the jihadist-run northwestern region of Idlib also wounded several others, the Syrian Observatory for Human Rights said.

Air strikes by regime ally Russia killed four civilians including a child in the village of Al-Bara in the south of the region, the Observatory said.

An AFP correspondent at the scene saw rescue workers pick through the rubble of a two-storey home whose concrete roof had collapsed.

Rescuers carried away the body of a victim wrapped in a blanket on a stretcher.

Russian raids also killed nine civilians including three children in the nearby village of Balyun, the Observatory said. Crude barrel bombs dropped by government helicopters killed five civilians including three children in the village of Abadeeta, also in the same area.

Copyright Agence France-Presse, 2019