Iraq, ISIS and Syria
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Syria chaos sparks ISIS security crisis as 150 detainees relocated to Iraq amid prison breaks. Kurdish forces withdraw from detention facilities.
ISIS prisoners escaped from a northeastern Syria prison, and some remain unaccounted for after chaos made tracking impossible, according to Syria analyst Nanar Hawach.
A fragile truce reached this week between the Syrian government and Kurdish-led fighters was seen as a blow by many Kurds in their hard-won fight for autonomy.
British-born Islamic State fighters have been evacuated by the US military from Syria to Iraq, where they could face the death penalty.