“Syrian rebel factions battled fighters from the Islamic State in Iraq and the Levant (ISIL) across north-west Syria on Saturday in the heaviest clashes between President Bashar al-Assad’s opponents in nearly three years of conflict, activists said. The apparently coordinated strikes against the ISIL come after months of increasing resentment of the powerful al Qaeda-linked group, whose radical foreign jihadis and have alienated many ordinary Syrians in rebel-held territory.”
Source: Syrian rebels launch fierce offensive against al Qaeda fighters | Reuters