A video of the procession has appeared on Isis-affiliated social media accounts, showing the prisoners in orange jumpsuits and flanked by black-clad militants brandishing Kalashnikovs and the group’s black flag.
People lining the streets could be heard jeering and shouting “Allahu Akbar” as they passed one by one on the back of flat bed vans.
The captured soldiers were each forced to stand alone in a cage similar to that used in the murder of Jordanian pilot Muath al-Kasasbeh as the convoy crawled through the town.
The footage was believed to have been filmed in Hawija, in Iraq’s Kirkuk province, although the date could not be confirmed.
Ari Mamshae, an Erbil-based senior civil servant in the Kurdish President’s office, said Isis had vowed to murder the 17 abducted Peshmerga fighters.
“They say they will burn them,” he wrote on Twitter.