Mark Perlmutter, a Jewish orthopaedic surgeon from the US and vice president of the International College of Surgeons, volunteered in Gaza from the end of April through the first half of May.

In an interview with the CBS News broadcaster, he said children are being shot by Israeli snipers.

“I have two children that I have photographs of that were shot so perfectly in the chest, I couldn’t put my stethoscope over their heart more accurately, and directly on the side of the head, in the same child. No toddler gets shot twice by mistake by the ‘world’s best sniper’. And they’re dead-center shots,” he said.

CBS News said that more than 20 doctors, who were recently in Gaza, also testified about gunshot wounds they witnessed in children.

One American doctor told the show he reviewed CT scans to confirm what he saw because he “didn’t believe that this many children could be admitted to a single hospital with gunshot wounds to the head”.