Nasir El-Rufai, former Kaduna governor and chieftain of the African Democratic Congress (ADC), has written to Nuhu Ribadu, national security adviser (NSA), demanding clarification over the alleged procurement of thallium sulphate by the NSA’s office.
In a letter posted on X on Sunday, the ex-governor asked Ribadu to explain reports that ONSA procured about 10 kilograms of thallium sulphate from a supplier in Poland.
The ADC chieftain described the substance as highly toxic.
Specifically, the letter demanded details on the intended use of the chemical. It also sought the identity of the supplier, proof of regulatory permits, storage arrangements, and coordination with NAFDAC and the Nigeria Centre for Disease Control (NCDC).
Furthermore, the ex-governor requested information on any public health risk assessment or hazard mitigation plan.
The letter stressed that the inquiry was made in good faith. It said the request aimed to protect public safety and promote transparency.
Tension Escalates After Airport Incident
The development follows rising tension between the two men.
On Thursday, the former Kaduna governor accused operatives of the Independent Corrupt Practices and Other Related Offences Commission (ICPC) of attempting to arrest him at the Nnamdi Azikiwe International Airport.
The ex-governor alleged that the ICPC chairman acted on Ribadu’s directive.
However, the Economic and Financial Crimes Commission (EFCC) had formally invited him for questioning. According to the ADC chieftain, the agency received notice of his travel plans and secured assurance of his appearance upon return.
ARISE Interview Sparks Fresh Outrage
Meanwhile, controversy deepened after comments made during an interview on ARISE Television.
During the programme, El-Rufai directly accused Ribadu of ordering the attempted arrest.
The former governor claimed that a phone call authorising the action was intercepted. However, no source was disclosed.
“The government believes it is the only one that listens to calls, but we also have our ways,” the ex-governor said.
“He made the call and gave the order. Someone tapped his phone. The government listens to our calls all the time without a court order. Someone tapped his phone and told us that he gave the order.”
The remarks sparked public outrage. They also reignited debate over surveillance practices and alleged political interference.
