President Goodluck Jonathan has accepted the resignation of four cabinet ministers.
 
They are Minister of Aviation, Stella Oduah; Minister of Police Affairs, Caleb Olubolade; Minister of Niger Delta Affairs, Godsday Orubebe; and Minister of State for Finance, Yerima Ngama.
 
They were asked to resign to save them the humiliation of being sacked.
 
It is not immediately clear why Messrs Olubolade, Orubebe and Ngama were asked to leave.
 
But Mrs Oduah was sent packing over corruption-related offences.
 
She was indicted by both the House of Representatives and a presidential committee for compelling an agency under her supervision, the Nigerian Civil Aviation Authority, NCAA, to buy her two exotic armoured cars in violation of Nigeria’s public procurement laws.
 
Investigation also found her to have forged her academic qualifications, claiming to have obtained an honorary doctorate from a university that does not exist.