At least seven people have been killed, and 30 have been injured in a car bombing that targeted a market in the town of Azaz in northern Syria, near the border with Turkey. Syrian authorities claim it was a terrorist attack.

According to the London-based monitoring group The Syrian Observatory for Human Rights, the explosion was caused by a roadside bomb planted in the middle of the busy market in Azaz.

The White Helmets, a volunteer rescue group which operates in Syria, said two children were among the dead.

It is unclear who carried out the attack in the town which is run by pro-Turkish militias fighting Syrian President Bashar al-Assad.