ISLAMIC STATE (ISIS) has vowed to invade Rome in huge murals discovered under the part-liberated city of Mosul.
Chilling messages have been scrawled across the walls of the jihaid bunkers, recently visited by Iraqi forces, pushing the terrorists back towards the west of the city.
Coalition-backed forces have already battered the jihadis and left them fleeing from the east.
Now, as they leave the city, their underground lairs have been discovered.
Twenty five metres deep beneath the city a 2km long “gallery” was found.