The collapse of the Islamic State group leaves many countries facing a dilemma over what to do with the fighters' wives and their children.

In Britain, the case of one young woman - Shamima Begum - has sparked fierce debate.

But, unnoticed by many, Russia has been bringing women and children out of Iraq and Syria since 2017.

It's a major issue for Moscow as it's thought some 4,000 extremists left Russia to join IS - most of them from the mainly Muslim North Caucasus.

Sarah Rainsford went to the southern Russian republic of Dagestan to meet some of them.

Video produced by Matthew Goddard & Will Vernon