Syrians in al-Raqqa, a stronghold for fighters linked to al-Qaeda, are holding protests against their new rulers.
They are accusing the fighters of abuses and unjustified detentions.
The Islamic State of Iraq and the Levant, one of al-Qaeda's two official affiliates operating in Syria, has imposed its authority in the northern city for the past four months.
Al-Raqqa is the only provincial capital no longer under the government's control.
Al Jazeera's Zeina Khodr reports from Antakya, Turkey.