The death has been announced of a former Minister of Foreign Affairs, Gbenga Ashiru.
He died in a South African hospital, aged 66, after a long battle with illness which family sources said was related to a tumour in his brain.
Ashiru, was appointed minister by President Goodluck Jonathan in 2011, was removed in 2013 in a cabinet reshuffle.
Ashiru played a key role in the diplomatic face-off between Nigeria and South Africa in 2012 over the deportation of 125 Nigerians for not possessing valid yellow fever vaccination certificates. Nigeria retaliated and the stand-off was eventually resolved.