Nigeria, July 12 -- Prominent international groups involved in anti-corruption efforts globally have written to President Muhammadu Buhari on what they consider the unfortunate treatment of Ibrahim Magu.

PREMIUM TIMES reported the arrest of Mr Magu, acting chairman of Nigeria's anti-graft agency, EFCC, on Monday.

He has been detained since then as he continues to appear before a panel probing allegations of corruption and insubordination against him. The allegations were made by the Attorney-General of the Federation, Abubakar Malami.

Mr Magu was also formally suspended from office on Friday, according to a statement by Mr Malami's office.

Mr Magu and Mr Malami have had repeated disagreements on the anti-corruption war and many Nigeri...