The town lies some 50 km (30 miles) northeast of the ancient city of Palmyra, which was captured by the army in March.
"On August 13, 2017, as a result of joint actions by the Russian Aerospace Forces, Syrian government troops and militia units in the east of the province of Homs, the town of As-Sukhnah was completely freed from Daesh terrorists".
The town is also located some 50km from the provincial boundary of Deir Al Zor province, Daish's last major foothold in Syria and a major target for the Syrian government.
"The liberation of As-Sukhnah from Daesh terrorists opens new opportunities for the Syrian government forces to launch an offensive and deblock the city of Deir ez-Zor". The Syrian government still controls a pocket of territory in Deir Al Zor city, and a nearby military base.
Unidentified assailants shot dead seven members of Syria's White Helmets rescue service early Saturday during a raid on their base in a jihadist-held northwestern town of Sarmin, the group said.
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The Premier League match between Manchester United and West Ham will be broadcast live online and on NBCSN. Marcos Rojo, Luke Shaw and Ashley Young are injured.
Two minibuses, some white helmets and walkie-talkies were stolen, so it was not clear whether the motive for the attack was political or criminal.
The Syrian Observatory for Human Rights said the volunteers had been killed by bullets to the head.
The White Helmets emerged in 2013, working to rescue civilians in rebel-held areas.
Their detractors, including President Bashar Al Assad's government and his ally Russian Federation, accuse them of being tools of their worldwide donors.