The agency specified that the vehicles in the video had previously been involved in delivering weapons to the Kurdish-led militia operating in the country.
On Wednesday, US President Donald Trump announced that the United States would withdraw its troops from Syria as the Daesh* terrorist group, which was the only reason for the American presence in the Arab country, had been defeated in Syria.
White House Press Secretary Sarah Sanders said in a statement that Washington had already started the process of withdrawing its troops, which number about 2,000.
* Daesh (ISIL/ISIS/IS/Islamic State) is a terrorist organisation banned in Russia