Hamza Al-Mustapha, former Chief Security Officer (CSO) to late Head of State, Gen. Sani Abacha, has rejected claims that the former military ruler died during an intimate encounter with a woman, insisting that he possesses CCTV footage showing Abacha's final moments.

Speaking to journalists in Kaduna, Al-Mustapha described the account contained in a recent memoir by retired Department of State Services (DSS) operative, Dennis Amachree, as false and politically motivated.

He alleged that Amachree was acting on behalf of unnamed individuals and vowed to respond to the allegations at the appropriate time.

"The boy was asked to write the lies by others. I have all the CCTV footages of what happened in my custody, so what he said are not true," Al-Mustapha said.

He urged Nigerians to disregard the claims, arguing that it was unfair to make allegations against someone who was no longer alive to defend himself.

"Just ignore his lies. It's bad to say such things about someone that is dead," he said.

"But I want to assure you that the author of the book is acting out a script. He is not acting alone.

"At the appropriate time, I will respond to these lies. You don't tell your enemies your plans."

Al-Mustapha has consistently maintained that Abacha's death was linked to a handshake with a security operative attached to a visiting foreign dignitary, a claim he has repeated on several occasions over the years.

The renewed controversy followed revelations in Amachree's 348-page memoir, DSS @ 40: My Journey Behind the Shield, in which the retired intelligence officer claimed that Abacha died in the early hours of June 8, 1998, after suffering what he described as a coitus-induced cardiac arrest inside the Presidential Villa Guest House, Aso Rock.

According to Amachree, the incident involved a Nigerian pharmacist, adding that the account represented what he described as the true circumstances surrounding the late military ruler's death and should put to rest years of conspiracy theories.

"The lady pharmacist on whom Abacha apparently had a coitus-induced cardiac arrest remains the true position and puts an end to the conspiracy theories and half-truths that have gone viral," Amachree wrote in the memoir.

Abacha ruled Nigeria from November 1993 until his death in June 1998.

His passing has remained one of the country's most controversial political events, giving rise to conflicting accounts and conspiracy theories over the years.

He died barely a month before the death of Chief Moshood Kashimawo Olawale (MKO) Abiola, the presumed winner of the annulled June 12, 1993 presidential election, who was in detention under the Abacha military administration.