Despite the plea al-Qaeda chief Ayman al-Zawaheri issued to stop the infighting between Nusra and ISIL (The Islamic State in Iraq and the Levant), the two terrorist groups continued their fierce clashes in Deir Ezour

Despite  the plea al-Qaeda chief Ayman al-Zawaheri issued to stop the infighting between Nusra and ISIL (The Islamic State in Iraq and the Levant), the two terrorist groups continued their fierce clashes  in Deir Ezour, eastern Syria, leaving 63 killed.

The clashes between Al-Qaeda's Syrian branch Al-Nusra Front and the Islamic State of Iraq and the Levant (ISIL) have prompted 60,000 people to flee towns in the oil-rich province.

The Observatory said 58 fighters on both sides had been killed in the clashes on Monday, along with five civilians.

The deaths bring to 150 the toll since the latest confrontation between the groups erupted last week in Deir Ezzor, bordering Iraq.