The footage shows a mass burial in Goma, Congo, and was filmed by Reuters video journalist Djaffar Al Katanty, who said seeing Trump holding the article with the screengrab of his video was a shock.

"It's not a burial site," he explained, saying Trump was prone to "exaggeration", adding though that he did not mind the image of the crosses being used. "It was a memorial. It was not a permanent memorial that was erected. It was a temporary memorial."