Damascus: The Islamic State in Iraq and Greater Syria (ISIS) killed a commander of a rival jihadi group in the eastern countryside of Syria’s capital Damascus.

The commander was killed when the ISIS blew up his car in the al-Ghouta countryside of Damascus, the pro-government al-Khabar TV reported.

The victim, Harun, was the head of the Badr Brigade, a faction of the so-called Islam Army, which has been deadlocked in battles with the ISIS over control of rebel-held areas on the eastern edge of Damascus.

Jihadi groups, the major power fighting the government troops of Syrian President Bashar al-Assad, have engaged in infighting over control of territories and strategic facilities, mainly in northern and eastern Syria.

The rebel-on-rebel battles have claimed the lives of 7,000 rebels and civilians since the beginning of this year.