By Jeremy Herb - 01/27/14 03:34 PM EST
A senior leader of an al Qaeda-affiliated group fighting in Syria was killed in clashes with other rebel factions, the Associated Press reports.
A senior Iraqi intelligence official told the AP that Haji Bakr was assassinated as part of the dispute between the Islamic State of Iraq and the Levant (ISIL) and rival opposition groups.
More than 1,400 have been killed as al Qaeda-linked ISIL has been fighting other rebel groups for several weeks across opposition-controlled territory in northern Syria.
The clashes amidst rebel groups in Syria has complicated their fight against Syrian President Bashar Assad’s regime, and raised concerns in the U.S. and elsewhere about sending military aid to opposition groups.