The violence in Tartous province marks the deadliest challenge yet to the Islamist-led authorities which swept Bashar al-Assad from power.

Syria's new authorities on Thursday launched a security crackdown in a coastal region where 14 policemen were killed a day before, vowing to pursue "remnants" of the ousted Bashar al-Assad government accused of the attack,

Syria's new rebel-led authorities say supporters of ousted President Bashar al-Assad have killed 14 interior ministry troops in an "ambush" in the west of the country. They say 10 other troops were wounded in the fighting on Tuesday near the Mediterranean port of Tartous,