Sani Usman, a Brigadier-General, has been replaced as spokesman of the Nigerian Army.
Usman is currently attending a senior executive course at the National Institute for Policy and Strategic Studies (NIPSS) in Kuru, Jos.
He has been replaced by another Brigadier-General, Jude Chukwu.
The formal handover ceremony has been slated for Monday.
Chukwu was among the 92 colonels promoted to the rank of Brigadier-General last November.
His appointment as spokesperson comes at a time when the Army is involved in controversy over the abduction of students of Government Girls Science Technical College, Dapchi, Yobe state.
There had been reports that some of the girls were rescued, but the Governor of Yobe, Ibrahim Gaidam, had denied that any of the students was found.