At least 360 people kidnapped by Boko Haram jihadists from a mainly Muslim community in Nigeria's north-eastern Borno state in March have been freed from a remote mountain hideout.
Mass abductions by armed groups for ransom have become a common tactic in Nigeria in recent years — and though it is illegal to pay ransoms, it does happen.
Boko Haram infamously kidnapped more than 200 schoolgirls from the village of Chibok in 2014 — around 90 of whom remain missing. At the time the group forced its captives into sexual slavery, domestic servitude, or used them as suicide bombers.
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