Afghan President Hamid Karzai has condemned a video that appears to show US Marines urinating on the bloodied corpses of several Taliban fighters.
The Taliban has also criticised the video as “shameful” but said it would not derail attempts at peace talks.
The US military is investigating the authenticity of the video and the Marine Corps said the actions were not consistent with its core values.
The origin of the video is not known, nor is it clear who posted it online.
The footage shows four men in military fatigues appearing to urinate on three apparently lifeless men. They have brown skin, bare feet and are dressed in loose-fitting outfits. One appears to be covered in blood.
A man’s voice is heard saying: “Have a great day, buddy.”
The men in military fatigues seem to be aware they are being filmed.