Al-Qaeda disavows ISIS militants in Syria

Last May, Ayman al-Zawahiri rejected an attempt by the Iraq-based group to merge with the al-Nusra Front in Syria.
Since then, ISIS has been condemned for attacking fellow rebels and abusing civilian supporters of the opposition.
As many as 2,300 people are reported to have been killed in the confrontations between ISIS's predominantly foreign fighters and rebels from both Western-backed and Islamist groups.
On Sunday, at least 16 Islamist rebels were killed when an ISIS suicide bomber blew himself up at their headquarters in Aleppo province. MORE