The opposition Free Syrian Army (FSA) says an Al-Qaeda-linked rebel group has killed one of its top commanders.
FSA spokesman Luay al-Mokdad said on July 12 that Kamal Hamami, a member of the FSA's senior military leadership, was killed in the northern port city of Latakia by fighters from the Islamic State of Iraq and the Levant.
The Britain-based Syrian Observatory for Human Rights reported that Hamami was killed on July 11 in fighting between the two factions over control of a checkpoint in Latakia.
Mokdad called Hamami's killing "a very serious development."
The killing could widen rifts between rival moderate and radical groups fighting to oust President Bashar al-Assad.
It follows growing antagonism between the FSA and Islamists, who have sometimes joined forces on the battlefield in their fight against Assad's regime.
Based on reporting by dpa and Reuters