Does video show Russian prisoners being shot?
Ukrainian authorities investigate a video apparently showing Russian PoWs being shot in the legs.
In the most disturbing part of the video, three men appear to be shot in the legs at close range with an assault weapon.
There's been some debate on social media as to whether the footage is genuine or staged, with some people claiming there isn't enough blood, evidence of exit wounds or shouting and screaming from the victims for it to be real.
We showed the video to several trauma surgeons and former military doctors who gave us their expert opinion but wished to remain anonymous.
One said he had treated soldiers who had sustained gunshot injuries who didn't shout or scream and said the lack of bleeding on some of the wounded soldiers could be explained by them having had a tourniquet applied (visible in the video).
He said: "It is my opinion that the footage cannot be categorised as 'fake' purely based on the images seen. This requires an investigation for war crimes."
Another doctor said: "It appears genuine... these meet the description of punishment shootings to the limbs".
