The National Intelligence Agency (NIA) has dismissed its immediate past Director-General Ambassador Muhammed Dauda.

Dauda was acting head of the intelligence agency from November 2017 to January 2018.

Dauda was dismissed through a letter dated March 6, signed by T.A. Yusuf, on behalf of the new Director General of the agency, Dr Ahmed Rufai Abubakar.

The agency has been embroiled in leadership crisis since the appointment of Abubakar by President Muhammadu Buhari in January.

The former DG was warned in the sack letter not to engage in anything “inimical” to the agency’s operations, or he would risk being tried for treason, the security source said.

Dauda had spent 34 years in service of the intelligence agency.

The dismissal came after Dauda’s alleged refusal to appear before a disciplinary panel set up to try him for allegedly bringing the agency into disrepute.

The ex-NIA chief had made serious allegations against some members of the presidential panel led by a former Secretary to the Government of the Federation, Ambassador Babagana Kingibe, during his appearances at the House of Representatives committee on national intelligence and public safety and the EFCC.

Earlier on Monday, armed security operatives, said to be NIA combat agents, invaded the official residence of the embattled former DG, located in Maitama District, Abuja.

For three days, the residence on No 3 Osara Lane, off Osara Close, Maitama, Abuja was cordoned by about 30 armed operatives.

Security sources said the operatives were there to effect the arrest of the ambassador.

Dauda was on tour of duty in the Republic of Chad as ambassador before his redeployment to Abuja to head the agency after the suspension of Ayodele Oke.

He was reported to have gone into hiding after his testimony before Reps committee, citing threats to his life.

It was learnt that he was asked to return to his post in Chad by the new leadership at the NIA to continue with his tour of duty.

But Dauda didn’t comply with that directive, saying his life would be endangered in N’djamena because his cover as an intelligence chief was removed after his redeployment to lead the NIA.