Sirte was a stronghold for Islamic State from 2015-2016, when Libyan forces backed by U.S. air strikes ousted the ultra-hardline group. Hundreds of foreign militants joined Islamic State in Sirte.
Dozens of women and children detained towards the end of the fighting have been held in Misrata, the city from which the military campaign in Sirte was led.
They include nationals of Tunisia, Egypt, Sudan, Senegal, Chad, and Niger. Twenty-one Libyan children have been handed back to their families.
In June, eight children were handed over to the Sudanese authorities and returned to Sudan. Eleven other Sudanese women and children are still in Misrata.
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