"For the fourth day in a row, the desert town of al-Sukhnah near the ancient city of Palmyra (Tadmur), witnessed several groups of ISIL terrorists who were leaving their positions due to their commanders' atrocities and harsh behaviors," the sources said.

"The ISIL security forces, meantime, have arrested the families of fled members. The fled members try to reach to Idlib and some camps at Syria-Turkey camp. Some of them also have moved to al-Rakban camp in Sothern Syria," the sources added.

"At least 30 fighters have left ISIL in al-Sukhnah," they went on to say.

Sources said earlier this week that Syrian military forces stormed ISIL’s defense lines in the Eastern territories of the ancient city of Palmyra (Tadmur) and won control over several silos in the gas-rich region.

The ISIL suffered a heavy death toll and its military hardware sustained major damage in the Syrian soldiers’ offensive in Arak gas-rich region.

After hours of fierce clashes, the Syrian army pushed ISIL back from wheat silos.

Syrian warplanes for their part pounded ISIL’s centers and vehicles along Palmyra-Al- Sukhnah, ending in destruction of ISIL’s vehicles carrying fresh forces; FNA reported.

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