The US Air Force MQ-9 Reaper Drone was hit on Sunday in the country’s eastern province of Dayr al-Zawr, where a US-led coalition attack killed dozens of Syrian soldiers a day earlier.
Syrian troops also managed to wrest control over most of Daesh positions on the mountainous Jabal Therdeh area on Sunday after the US airstrikes near Dayr al-Zawr airbase gave the extremists the chance to overrun the areas.
There are reports that Syrian and Russian fighter jets have struck the area around Dayr al-Zawr air base, militant-held areas as well as the road linking the embattled eastern Syrian city to the town of Mayadin, which lies 45 kilometers (30 miles) to the southeast.
Syria has been gripped by foreign-backed militancy since March 2011. Over the past few months, the Takfiri militants active in the Arab country have suffered major setbacks as the Syrian army has managed to liberate several areas.