Suspected Boko Haram terrorists have killed four staff of the United Nations working on border demarcation in Adamawa State, northeast Nigeria.
It was gathered that the incident occurred on Tuesday at an area between Toungo in Adamawa State and Kontcha in Cameroon.
Credible sources said the victims include a Kenyan, a Cameroonian and two Nigerians from Adamawa and Jigawa States.
The bodies arrived Federal Medical Centre, Yola in UN vehicles around 4:00pm on Wednesday.
Military and emergency officials could not immediately be reached for comment as details of the attack are still sketchy.