© UnknownISIL terrorists
"At least 300 militants who had defected the Free Syrian Army (FSA) and joined the ISIL after receiving some trainings in Western Deir Ezzur, have been arrested by ISIL's security forces," the sources said, adding, "The arrested-FSA militants had participated in several ISIL-held ideological courses in Deir Ezzur to repent from their previous ideas."
The 300 militants were arrested by ISIL after they were charged with spying.
"In the meantime, ISIL has been preventing civilians from leaving its territories in Deir Ezzur by detonating al-Siyasiyeh bridge," the sources said.
Meantime, the sources added that ISIL is worried about the movement of the people along its territories and arrested tens of Deir Ezzur residents after they travelled to Raqqa without ISIL's permit last month.
In mid-September, the ISIL gunned down two of its most notorious commanders in Deir Ezzur for unknown reasons.
According to the source, Maysar al-Kalizi and Anas al-Abdon were executed by ISIL's security forces.
Late in August, the ISIL terrorist group had also executed one of the most notorious security commanders in al-Sho'eitat region of Deir Ezzur.
Va'el Kassb al-Quweider, known as the right hand of senior commander of ISIL in Deir Ezzur Jafar al-Khalifeh, was killed by the group's security forces in the village of al-Kashkiyeh.
"Al-Quweider was notorious among the region's civilian for his atrocities against innocent people while occupation of villages of al-Sho'eitat region in 2014," local sources said, adding, "There is no news about the cause of his execution"
Comment: Armed clashes reported between ISIL's foreign commanders in Iraq