Savages.

Prisoners: Members of the Sunni Shaitat tribe are rounded up and marched to their deaths in Syria by fighters from the Islamic State in a series of horrific images posted online by the jihadist group.

Crimes against humanity: The captives are then lined up and ordered to kneel down on the dusty ground.

Barbaric: Around 20 Islamic State fighters stand behind the line of men and the squad of jihadists begin to gun down the prisoners.

Sick: A jihadist appears to be smiling as he holds a terrified man by his hair and begins to slice through his neck with a hunting knife.

Brutal: Other captives are shot before being tied to makeshift crucifixes.

A couple of jihadists approach the dead prisoners and finish off any survivors from point-blank range.

HT: Daily Mail