ERBIL, Kurdistan Region of Iraq— The Kurdish-led Syrian Democratic Forces (SDF) announced Friday that they had clashed with Islamic State (ISIS) remnants in Deir ez-Zor, eastern Syria, on Thursday.

“Yesterday, one of the terrorist organization's cells targeted a position of our forces in the town of al-Tayyana in the eastern Deir ez-Zor countryside with an RPG [rocket-propelled grenade], causing material damage,” read a statement by the SDF.

It added that they also "targeted a military vehicle arriving at the site to provide support and assistance to the targeted military position with an RPG, but it did not cause any damage.”

Remnants of ISIS seek to "undermine security and stability in the region and revive their presence by carrying out terrorist operations by targeting our forces, civilians, and civilian institutions,” the SDF said.

"However, our forces affirm their continued fight against the organization under all circumstances and conditions, and their operations will not cease until it is eradicated from its roots,” the US-backed force continued.

Located in eastern Syria and bordering Iraq, Kurdish forces control part of the outlying villages and towns of oil-rich Deir ez-Zor, while the city center is under the control of the new Damascus authorities.

ISIS took control of swathes of Syrian and Iraqi territory in 2014, announcing its self-proclaimed caliphate with the Iraqi city of Mosul as its capital. They were territorially defeated with assistance from the US-led coalition forces in Iraq by 2017 and in Syria by 2019.

The US-backed Kurdish forces currently control the bulk of the northeastern and eastern regions of Syria, amounting to a quarter of the territory of the country. Formed in 2015, the SDF is considered the Kurdish de facto army.

The SDF has repeatedly warned of the extremist group's resurgence in the wake of the ouster of former president Bashar al-Assad in December, with the debilitated group operating from territory in the remote desert areas of Homs and Deir ez-Zor provinces.

Speaking at a forum in Sulaimani on Wednesday, Iraqi Prime Minister Mohammed Shia’ al-Sudani said Baghdad is “closely monitoring” ISIS activities in Syria and “continuously evaluating” the threats that the extremist group poses.