Footage has emerged online of what is claimed to be a group of ISIS soldiers trying to escape the besieged Syrian city of Manbij by disguising themselves as women.

The footage, which was posted to the SDF Press Center Twitter page yesterday, were caught by opposition forces.

It's not the first time members of the extremist army have been discovered trying on such a ruse.

In February this year, troops abandoning their posts in Ramadi were captured despite their burqas and made-up faces.

This latest failed attempt was prompted by attacks on Manjib by coalition forces, which later issued a 48-hour offer to withdraw from the town without violence, Al Jazeera has reported.

A group of three guardsmen decided to seize an opportunity to get out, donning black robes and mingling with about 200 civilians making an exit.

But the put-on was quickly shut down by Syria Democratic Forces, which is staffed largely by Kurds, who released humiliating footage of the men being stripped and stuffed into the hole.