The Islamic State (IS) group has published a video purporting to show an ambush in Niger in which four US soldiers were killed last October.
It is not clear why the release of the video - via an IS outlet on messaging app Telegram - was delayed until now.
The video consists mainly of raw footage, including images apparently filmed using a helmet camera belonging to one of the soldiers.
The video seems to suggest that the attack was carried out by IS militants.
The deaths became a major talking point in the US when the widow of one of the soldiers, Army Sgt La David Johnson, said President Donald Trump had made her cry during a condolence phone call by suggesting her husband "knew what he signed up for".
