Eight Syrian fighters affiliated with Iran's Revolutionary Guards have been murdered after an ambush on their position in Deir Ezzor province in eastern Syria.

The Syrian Observatory for Human Rights stated on Tuesday that "unidentified armed individuals" raided the position in the Syrian desert, marking the second deadly assault on pro-Iranian fighters in two days in the Mayadeen area.

According to Rami Abdel Rahman, head of the Observatory, the eight murdered fighters "worked under the command" of Iran's Revolutionary Guards.

Deir Ezzor province is divided between US-backed Kurdish-led forces to the east of the Euphrates River and Iran-backed Syrian government forces and their allies to the west. Additionally, the Islamic State (IS) group remains active in the region.

Just a day earlier, the Observatory reported that gunmen killed three Syrians also affiliated with the Revolutionary Guards in an attack on a military position on the outskirts of Mayadeen city.

Since the onset of Syria's civil war in 2011, Iran-backed groups have provided support to President Bashar al-Assad's forces. Thousands of pro-Iran proxy fighters are stationed in Deir Ezzor province, as per the Observatory's estimates.

Although ISIS suffered territorial defeat in Syria in 2019, its remnants continue to carry out attacks, particularly in the expansive Badia desert stretching from the outskirts of Damascus to the Iraqi border.

The border area serves as a crucial segment of the route utilized by pro-Iranian armed groups to transport fighters, weapons, and commodities between Iraq and Syria.