A video that appears to show rebels in Syria executing a small group of soldiers from the regime of President Bashar Assad has prompted human rights groups and officials to appeal to all sides to respect the human rights of their prisoners.

NPR's Kelly McEvers reports from Beirut that the video, which appeared online Thursday, "shows Syrian rebels beating eight to 10 soldiers before lining them up on the ground and executing them with automatic rifles. .. One rebel is heard telling a prisoner, 'do you know that we belong to the people of this country?' The authenticity of the video could not be verified. The incident reportedly was part of a rebel surge to overtake government checkpoints."

Now, Amnesty International is urging the Assad regime and its opponents "to respect the laws of war and to refrain from torturing, ill-treating or killing their prisoners" and says it is investigating the incident.

The U.N. is also on the case. According to the BBC:

"A spokesman for the U.N. High Commissioner for Human Rights, Navi Pillay, said: 'It seems very likely that this is a war crime, another one.' "

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