Nigeria's president has ordered a corruption investigation into allegations that a fictitious government agency was set up within his own office, complete with public funding worth $950,000 (£700,000).

According to the presidency, the letter from the president's chief of staff creating the Presidential Foreign Intervention Promotion Council (PFIPC) had been forged.

The police have launched a manhunt for Adeniyi Adeyemi Matthew, who had been presenting himself as the "PFIPC director general", on suspicion of forgery, impersonation and related offences.

Before going into hiding, Adeyemi told local media that he was innocent and now feared for his life.

He also promised to show up in court to clear his name.

President Bola Tinubu on Tuesday directed the Independent Corrupt Practices and Other Related Offences Commission (ICPC) to investigate and submit a comprehensive report within 30 days.

Checks by BBC News Pidgin showed the agency had secured office space within the Federal Secretariat in Abuja, opened bank accounts with the Central Bank of Nigeria, and appeared in the 2026 Appropriation Act with an allocation of 1.3bn naira ($950,000; £700,000).

The presidency claimed police forensic analysis had confirmed that the signature from the president's chief of staff, Femi Gbajabiamila, on the disputed appointment letter had been forged.

According to the charges filed before the Federal High Court in Abuja, Adeyemi and two other defendants are accused of using forged official documents to establish and operate the purported council, opening multiple bank accounts in its name and seeking official recognition for an agency the government maintains does not exist.

Tinubu directed the ICPC to investigate various allegations including:

• Forged appointment letters and official government documents;
• Use of false claims to seek official recognition and diplomatic support, including visa facilitation;
• Opening of multiple bank accounts using allegedly forged documents and
• The role of any public officer, private individual, financial institution or intermediary that may have facilitated the alleged scheme.

The president also ordered investigators to examine the wider circumstances that enabled an allegedly fictitious body to acquire the appearance of official legitimacy, and to identify weaknesses in government procedures that were alleged to have been exploited.

The scandal has prompted mounting public pressure from civil society organisations, opposition politicians and senior lawyers who have demanded an independent inquiry.

Tinubu said the integrity of the presidency and federal institutions "must be protected against impersonation, forgery, abuse of official identity and the exploitation of weaknesses in the public service".

"All persons found culpable are to be treated strictly in accordance with applicable law," the president's statement read.