Iraqi forces have released some 1,500 people from an underground ISIS jail during an operation in the western province of Anbar, officials said Saturday.
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Most of the prisoners in the underground compound were civilians, Malallah al-Obeidi, a local official, told AFP, putting their number at around 1,500. The figure was repeated by police colonel Fadhel al-Nimrawi.
The prison is located in the town of Heet, one of the largest settlements in the province still held by the militant group. Iraqi forces recaptured parts of the town, but other areas are still held by ISIS.
Iraqi forces recaptured the Anbar capital of Ramadi in February, but have yet to push out ISIS from Heet and the city of Fallujah, also located in the province.