Nigeria, March 27 -- The Headquarters Theatre Command of Operation Hadin Kai, a joint task force in the North-east, said it is investigating allegations that troops shot and killed a civilian, Abdulrahman Mustapha, in Maiduguri, Borno State, an incident that had been called extrajudicial killing.

In a statement issued on 25 March, the operation's spokesperson, Sani Uba, said the incident was reported to have occurred on 22 March at about 11:40 p.m. around the Polo axis near the Federal High Court in Maiduguri.

Mr Uba, an army lieutenant-colonel, said social media posts alleged that Mr Mustapha, also known as Abchin, was unarmed and returning from a Sallah visit when he was killed, describing the incident as a violation of constitutional...