A Pentagon official revealed that ISIL snipers are targeting humanitarian corridors established by Iraqi security forces to relieve suffering in the ISIL-held city of Fallujah

A Pentagon official revealed that ISIL snipers are targeting humanitarian corridors established by Iraqi security forces to relieve suffering in the ISIL-held city of Fallujah.

Baghdad-based military spokesman Colonel Steve Warren said the shooters were preventing residents from escaping Fallujah, which is only about 30 miles (50 kilometers) west of Baghdad and is facing major shortages of basic supplies including medicine.

“We know that the Iraqis have attempted on several occasions to open up humanitarian corridors to allow some of those civilians to come out,” Warren told Pentagon reporters in a video call.

“Those have met with generally not much success. ISIL has done things like set up snipers to cover down on those corridors, to kill people as they're trying to get out. So that has really discouraged their use,” he added.

Warren later said Iraqi forces had tried to set up three corridors, but these have been all but abandoned because of the snipers.

“Word must have spread because no civilians have tried to use the corridors in the last few weeks,” he said.

Warren said Iraqi security forces now “generally” surround Fallujah and have begun to slowly “chip away” at it.

“This is the very first city that ISIL gained control of,” he said.

“ISIL’s been there for more than two years, so they are dug in and dug in deep. This is a tough nut for us to crack here. This is a tough nut for the Iraqis to crack.”