The United Nations says the offensive to retake Mosul, from IS fighters, has left more than 20,000 civilians without a home, almost half of them are children.

Iraqi special forces are continuing to push deeper into the city's eastern districts and are encountering more and more people, who have been living under IS control.

Our international correspondent, Ian Pannell, and cameraman Darren Conway are travelling with them.

They've sent this report - which does contain some graphic images.