Nigeria, May 7 -- Three former heads of Nigeria's top refineries are threatening to sue a national newspaper for N50 billion, accusing it of publishing a damaging report that linked them to a major fraud.

The publication had alleged their involvement in a $3 billion scandal related to refinery rehabilitation and claimed N80 billion was found in the personal account of one of the former officials.

The former Managing Directors-Mr Ibrahim Onoja of Port Harcourt Refining Company, Mr Efifia Chu of Warri Refining and Petrochemical Company, and Dr Mustafa Sugungun of Kaduna Refining and Petrochemical Company-have denied any connection to the fraud and said the report is false.

Their legal representative, Reuben Atabo, delivered a letter to t...