Al Qaeda-linked Nusra Front announced Sunday its conditions to end fighting in Syria with its rival extremist group, according to Agence France Presse.
"We will follow the orders of... [Al Qaeda chief] Ayman Al Zawahiri... to stop any attack from our side against the [Islamic State of Iraq and the Levant] ISIL, while continuing to respond whenever they attack Muslims and all that is sacred to them. As soon as ISIL announces the end of its attacks on Muslims, we will spontaneously stop firing," Al Nusra said in a statement.
Nusra and ISIL have been fighting against each other near the eastern Syria border in particular, prompting Al Qaeda chief Ayman Zawahiri to instruct ISIL chief Abu Bakr Al Baghdadi to "restrict ISIL activities to its home base in Iraq."
ISIL entered the Syrian war and was initially "welcomed" by other rebel factions, but the Al Qaeda-influenced group later began to fight the same comrades for control of their rebel-held areas, creating great rifts among the opposition, particularly with Nusra.
Rebels, in response and including Nusra, launched a "massive offensive" on ISIL in early January.