Opposition monitoring groups say airstrikes on markets in northern and central Syria have killed and wounded dozens.

The Britain-based Syrian Observatory for Human Rights said the air raids on a market in the northwestern town of Ariha killed 12 people, including three children. It says air raids in the central town of Rastan killed 16 people.

The Local Coordination Committees, another activist network, says nine people were killed in Wednesday's attacks on Ariha, in the insurgent-held Idlib province. It says the air raids on Rastan killed and wounded dozens.

Idlib borders Turkey and is a stronghold of the Fatah Army, a coalition of militant groups including the al-Qaida-affiliated Nusra Front. Rastan was one of the first Syrian towns to fall into rebel hands.