ISIS is preventing civilians from leaving Ramadi ahead of an attack planned by the Iraqi army to retake the western city that the militants captured in May, an Iraqi Defence Ministry spokesman said on Monday.
"There are families that managed to escape the gangs of Daesh," the spokesman, Naseer Nuri, told Reuters, using a local derogatory name for ISIS.
"There is intelligence information from inside the city that they are preventing families from leaving; they plan to use them as human shields," he added, without indicating the number of those who had managed to flee.
Iraqi military planes on Sunday dropped leaflets on Ramadi, asking residents to leave within 72 hours and indicating safe routes for their exit.
Iraqi intelligence estimates the number of ISIS that are entrenched in the centre of Ramadi, capital of Anbar province, at between 250 and 300.