U.S.-backed forces are pictured near the village of Susah in the eastern province of Deir Ezzor, near the Syrian border with Iraq on September 13, 2018. (AFP photo)

DAMASCUS, Oct. 13 (Xinhua) -- The U.S.-led coalition has used white phosphorus munitions in an attack on a town in eastern Syria, state news agency SANA reported on Saturday.

The attack, which took place over the past few hours, targeted the town of Hajin in the eastern countryside of the eastern province of Deir al-Zour, said SANA.

The report said the attack left no causalities.

SANA said the attack is the not the first one, as U.S.-led airstrikes used phosphorus ammunition in an attack on Hajin last month.

The U.S. coalition has been backing the Kurdish-led Syrian Democratic Forces (SDF) in their push to defeat IS in some towns in the eastern countryside of Deir al-Zour.

The battles are hard as the IS militants resorted to several tactics to prevent the SDF from advancing through landmines and suicide bombings.