Former Kaduna State governor and prominent public figure Nasir El-Rufai has written to the National Security Adviser seeking urgent clarification after media and social reports alleged that the NSA’s office imported thallium sulfate, a highly toxic, odourless and colourless compound.

In a letter made public today, Mr. El-Rufai said he acted “as part of my duty as a citizen” to request a formal explanation from the office of the National Security Adviser following reports that the agency imported thallium sulfate. He described the chemical as “a very dangerous toxin” and stressed that “it’s a matter of concern if anyone brings in any poison, more so an odourless, colourless one.”

Thallium compounds, including thallium sulfate, are tightly regulated in many jurisdictions because of their acute toxicity, potential for environmental harm, and historically documented use as poisons. Exposure can cause severe neurological and gastrointestinal symptoms and may be fatal at sufficient doses. The compound’s lack of smell and colour has raised particular alarm in the public reaction to the allegations.

El-Rufai’s letter asks the NSA to confirm whether the reported importation occurred, to disclose the purpose for which the substance was procured, and to provide details on the quantities involved, the supplier, and the chain of custody. He also called for transparency on whether appropriate regulatory approvals and safety protocols were secured and whether any oversight or monitoring mechanisms are in place to prevent misuse or accidental exposure.

The former governor framed his intervention as a public-interest inquiry rather than a political attack, urging swift, factual responses to allay public fear and to allow health and security authorities to take any necessary action.

Reactions and wider concern

Since the reports surfaced on social and traditional media this week, citizen groups and health advocates have voiced alarm and demanded an immediate explanation. Legal experts say that the importation of controlled toxic substances would ordinarily require clear statutory authority, permits from regulatory bodies such as the National Agency for Food and Drug Administration and Control (NAFDAC) and environmental approval where applicable.

Public-health specialists warned that, if confirmed, the presence of thallium sulfate in official custody would necessitate prompt risk assessment, secure storage, and strict audit trails to prevent diversion or accidental exposure. They urged authorities to release guidance to health facilities and first responders on symptoms and treatment protocols as a precaution.

Official response pending

At the time of publication, the office of the National Security Adviser had not issued a public statement addressing El-Rufai’s letter. Sources familiar with the NSA’s operations told reporters they were aware of the correspondence and that a formal response would be prepared once internal checks were completed.

The matter is likely to draw scrutiny from parliamentary oversight committees and possibly regulatory authorities if documentation shows procurement or possession of the compound. Observers say transparent disclosure of procurement records and the scientific or operational justification for any such acquisition will be critical to restoring public confidence.

What’s next

El-Rufai has requested a prompt reply; activists and lawmakers are calling for the NSA to publish supporting documents and for regulators to confirm whether any permits were granted. Health and safety advocates are urging authorities to communicate clearly with the public about any potential health risks and the steps being taken to mitigate them.

The story is developing. Further updates will follow as responses and official documents become available.