Ibrahim Gambari, former UN under secretary-general has been appointed as Chief of Staff President Muhammadu Buhari .
Boss Mustapha, secretary to the government of the federation, announced the appointment of Gambari at the federal executive council meeting on Wednesday.
Gambari replaces Abba Kyari who died on April 17 from COVID-19 complications.
Gambari, who is from Kwara state, was the minister of external affairs from 1984 to 1985 under Buhari’s military regime.
He also served as the under secretary-general of the UN and special adviser to the secretary-general on Africa between 1999 and 2005.