ROUGH CUT (NO REPORTER NARRATION)
A convoy of fighters belonging to two of Syria's main rebel groups headed to the Iraqi border on Saturday (June 28) to fight ISIL insurgents who have captured swathes of Iraq, social media video purports to show.
In the video, which Reuters cannot independently verify, the militants are said to heading to the border town of Albu Kamal to fight militants loyal to the Islamic State in Iraq and the Levant (ISIL).
The fighters, said to be from the Nusra Front and the Free Syrian Army, are said to be traveling through the Syrian town of Deir al-Zor.
The footage emerges as Islamist rebels waged a counter-offensive in Albu Kamal on Saturday, challenging the grip of the (ISIL), which has seized large areas on each side of the crumbling Iraqi-Syrian frontier.
Earlier this week ISIL fighters appeared to be consolidating their hold over Albu Kamal when the local leader of the rival Nusra Front, al Qaeda's official branch in Syria, pl
