A Nigerian soldier has shot and wounded a United Nations helicopter co-pilot then killed a humanitarian worker and a fellow soldier at a military base in north-eastern Nigeria.
This was announced in a tweet by the Nigerian army on Thursday evening.
The injured co-pilot is on attachment from the United Nations Humanitarian Air Service (UNHAS) in the northeast, where the military is battling armed groups such as Boko Haram and its offshoots including the Islamic State West Africa Province (ISWAP).
Samson Nantip Zhakom, the Army spokesman for the counterinsurgency operation, said the unnamed soldier went on to shoot and kill a worker from one of the organisations providing humanitarian support in the region, before turning on a fellow soldier.
It was not immediately clear what prompted the attack, but Zhakom said investigations were under way.
