The federal executive council (FEC) has scrapped the ministry of Niger Delta and the ministry of sports development.
Mr Bayo Onanuga, special adviser on information and strategy to the president, announced the development in a statement on Wednesday.
He said the decision was made during the council meeting presided over by President Bola Tinubu at the State House, Abuja.
The presidential spokesperson said the National Sports Commission (NSC) will take over the functions of the sports ministry.
A newly established ministry of regional development is expected to oversee all the regional development commissions that have been created.
The commissions include the Niger Delta Development Commission (NDDC), North West Development Commission (NWDC), South West Development Commission (SWDC), and North East Development Commission (NEDC).
The FEC, he said, also approved the merger of the ministry of tourism with the ministry of culture and creative economy.
Before the commencement of the FEC meeting, President Tinubu swore in Abdullahi Bello as the new chairman of the Code of Conduct Bureau (CCB).
Bello will oversee the operations and key activities at the CCB in line with the provisions of the code of conduct and ethical standards.