Nigeria, Feb. 22 -- A former Nigerian ambassador, Lilian Onoh, on Tuesday, accused Geoffrey Onyeama of lacking the mental health to be a minister when he served as the Minister of Foreign Affairs in the former President Muhammadu Buhari's regime.

Mr Onyeama who served as Minister of Foreign Affairs under Mr Buhari from 2015 to 2023, is locked in a libel suit he filed against Ms Onoh at the Federal Capital Territory High Court at Zuba in Abuja.

Testifying via zoom from her base in the United States of America on Tuesday, Ms Onoh told the judge, Keziah Ogbonnaya, that she had warned Mr Buhari not to hire Mr Onyeama in one of her memos.

As her reason, she said she cited Mr Onyeama's "hereditory insanity" and the corrosive effects of the p...