The senior regional intelligence official, the Syrian security official and one of the Damascus-based foreign security sources said the bases under discussion would allow Turkey to defend Syria's air space in case of any future attacks.

Hospitals workers say at least 19 people were killed all but one of them women when a car bomb exploded on the outskirts of a northern Syrian city.

DAMASCUS (Reuters) -A car bomb killed at least 20 people in the northern Syrian city of Manbij on Monday, the Syrian presidency said, marking the second attack there in three days and the country's deadliest since Bashar al-Assad was toppled from power in December.

The Syria Civil Defence said some of the 15 wounded were in a critical condition At least 20 people, most of them women, have been killed in a car bomb attack in northern Syria, the country's presidency says.