Up to 80 girls kidnapped by Boko Haram in 2014 have been released. They were among 276 who were abducted from their school in Chibok on 14 April.The girls were released by Boko Haram after negotiations with the Nigerian government. Over 100 girls are still being held captive by the insurgents.In the last eight years, Boko Haram have killed over 30,000 people and kidnapped hundreds.
