The images were later deleted from the ministry of defense's Twitter and Facebook accounts, and the ministry said several hours later that there had been a "mistake", and published a different set of pictures, calling them "irrefutable proof" of U.S. aid of IS.
The ministry said Russian air power had supported Syrian troops in freeing the town of Abu Kamal from Isis, and that "facts of direct cooperation and support provided by the US-led coalition to the ISIS terrorists" came to light during the operation.
Users were quick to notice that one of the images was taken from a video game named "AC-130 Gunship Simulator: Special Ops Squadron".
After military research site Conflict Intelligence Team and investigative website Bellingcat showed the images actually came from a 2015 computer game titled AC-130 Gunship Simulator: Special Ops Squadron and 2016 USA war footage from Iraq, the ministry removed the post and explained its gaffe.
The ministry posted a number of aerial images that it claimed were of ISIS convoys, It said the United States intervened to "use (ISIS) to promote American interests in Middle East". As you'd expect from someone caught with their trousers down, the original tweets and Facebook posts have since been deleted, but once you post something on the Internet it's there forever.
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The militants had been forced to retreat from the city of Abu Kamal in the Syrian province of Deir al-Zour, one of the last remaining IS strongholds in Syria, by the advancing government troops.
Russia's defence ministry said not only did the Americans refuse to carry out a joint operation to strike Isis fighters leaving Abu Kamal but also allowed them to regroup on coalition-controlled territory.
The video game image seems to be taken from a promotional video on the game's website and YouTube channel, closely cropped to omit the game controls and on-screen information. "So, again that is pretty consistent with what we have seen come out of Russian MoD, as being baseless, inaccurate and you know, completely false", he said.
Coalition spokesman Col. Ryan Dillon called those claims, "about as accurate as their air campaign".