The Kurdish-led group which governs northeast Syria on Friday rejected a constitutional declaration issued by the new Islamist leadership in Damascus and called for it to be rewritten.

The agreement marked a major victory for Damascus in its quest to unify the country, as violent unrest continues to grip Syria’s coastal region.

Syria's interim government said it has reached a landmark agreement to integrate Kurdish-led forces into state institutions as it continues to try to unify the country following years of civil war.

Syria’s interim president on Thursday signed a temporary constitution that leaves the country under Islamist rule for five years during a transitional phase.