ABUJA—Islamist fighters from Nigeria’s Boko Haram group have abducted more than 1,000 children in the northeast since 2013, the United Nations children’s agency UNICEF said on Friday.
The militants regularly took youngsters to spread fear and show power, the agency said on the eve of the fourth anniversary of the abduction of 276 schoolgirls from the town of Chibok, a case that triggered global outrage.
