Horrific videos purportedly showing Syrian rebels throwing the bodies of postal workers off a roof and a man’s throat being savagely cut triggered outrage among rights activists on Monday.

Three videos all showing the apparent atrocities in the province of Aleppo, including a bound man being repeatedly shot, were posted on YouTube on Monday but their authenticity could not immediately be verified.

Both sides in the 17-month conflict have been accused of human rights violations as reports of cold-blooded killings mount.

“What is the difference between them and a wild animal in the jungle? At least a wild animal does not kill unless it is hungry,” said Massoud Akko, a Kurdish activist and co-founder of the Association of Syrian Journalists. . .