Syrian government forces continue to press forward with Russian air cover in the offensive against ISIS jihadists: two districts in the southeast of Deir ez-Zor have been liberated from terrorists.

Axar.az reports citing Sputnik.

The Syrian government troops and their allies liberated two southeastern districts of the city of Deir ez-Zor from ISIS terror group and reached the Euphrates river, a source in the operation headquarters told on Sunday.

"The army reached the Euphrates, having liberated [two] districts… On the east side, the militants were forced to retreat from the airbase at a distance of more than five kilometers [over three miles]," the source said.

According to the source, the terrorists retreated to the city of Al Mayadin while some of them crossed the Euphrates and sheltered in the northern part of Deir ez-Zor.

Although last week the three-year ISIS siege of the city of Deir ez-Zor was broken the fighting to fully liberate the area is still underway.

The successful Deir ez-Zor operation was the biggest breakthrough against ISIS since the terrorist group first launched an offensive in the province. The terrorists had been blockading Deir ez-Zor since 2014, with food and other supplies only being airlifted into the city. The group also took control over a large swath of the province of Deir ez-Zor and cut off roads to government-held districts.