The deaths of 37 suspected illegal miners in the custody of the Nigeria Security and Civil Defence Corps (NSCDC) in Niger State have raised serious questions about what happened between their arrest and the discovery of their bodies.
The detainees were arrested during enforcement operations against suspected illegal mining in the M.I. Wushishi and Lukoto areas of Niger State on September 15 and 16, 2026.
Two days later, on September 17, 37 of those arrested were dead.
The central question is no longer simply why they were arrested for suspected illegal mining. It is how 37 people placed under government custody came to die within about two days, and whether the conditions of their detention contributed to their deaths.
The official cause of death has not yet been established.
But the accounts emerging from the incident point to a series of questions that the government investigation will have to answer.
The NSCDC’s first explanation: a suspected disease outbreak
The NSCDC initially said the deaths followed a suspected outbreak of disease.
Suberu Aniviye, then Niger State Commandant of the NSCDC, said detainees were found dead in the early hours of September 17.
The corps said the bodies were taken to the General Hospital in Minna for medical examination to establish the actual cause of death.
The wording is important.
The NSCDC did not establish that a disease caused the deaths. It described disease as a suspicion and said medical examination was necessary to determine what actually happened.
The corps subsequently constituted an investigative team to examine the circumstances of the incident.
That leaves a major unanswered question: What evidence led officials to suspect disease in the first place, and what medical findings supported or contradicted that theory?
Then came a very different account
A survivor, Dauda Shehu, gave journalists an account that points to the physical conditions inside the detention facility.
Shehu told the Associated Press that about 65 detainees were packed into a poorly ventilated cell.
“We were jam-packed and there was no ventilation for us to breathe well.”
He said the detainees suddenly struggled to breathe and began scrambling for fresh air. He also said they banged on the cell door in an attempt to attract the attention of guards.
Another surviving detainee alleged that a substance was sprayed inside the cell before the door was locked. The survivor said the substance smelled like perfume but caused a burning sensation in the eyes and throat.
These accounts remain allegations and require independent verification.
But they are significant because they raise a completely different possibility from the initial disease explanation: whether overcrowding, inadequate ventilation, exposure to a substance, or a combination of factors played a role.
The numbers themselves need clarification
There is also an unresolved discrepancy over how many people were detained.
A survivor interviewed by AP put the number inside the cell at 65.
Niger State Governor Mohammed Umaru Bago, however, said 67 people had been detained before 37 died.
The Miners Association of Nigeria separately referred to about 67 people arrested during the September 15 and 16 operations.
The Federal Government has now specifically directed investigators to establish the number of people held in the facility, alongside the conditions of detention and medical attention provided.
What the governor said is particularly significant
Governor Bago has not declared suffocation to be the cause of death.
Instead, he said investigators were considering several possibilities.
“The most important is that people died in the custody of the Nigerian Civil Defence Corps. They were detained in their cells, and this morning we woke up to the news that 37 of them had died,” Bago said.
He said possible explanations included suffocation resulting from overcrowding and exposure to hazardous chemicals associated with illegal mining.
“It could be as a result of suffocation because there were so many in a cell. The second issue could be because of exposure to maybe lead poisoning or other very hazardous chemicals that are used to do the illegal mining,” he said.
It means that the cause of death was still an open question.
The governor also said forensic, medical and autopsy examinations were being conducted.
The biggest investigative problem: evidence
However, one of the most difficult questions now concerns the preservation of evidence.
Reuters reported that the victims were buried according to Islamic tradition, potentially complicating forensic analysis. The Guardian also reported that the bodies were buried without forensic examinations.
If those reports are accurate, investigators face a serious evidentiary challenge.
The inquiry will therefore need to determine what medical examinations were performed before burial, whether samples were collected, what hospital records exist and whether independent forensic experts can still establish meaningful findings.
The government has now directed that all records and material evidence connected with the incident be preserved.
Interior Minister Olubunmi Tunji-Ojo said the investigation must establish the identities of the deceased, examine their arrests and detention, determine the cause and circumstances of the deaths and establish whether anyone or any institution bears responsibility.
The government’s response has moved beyond an internal NSCDC investigation
The Federal Government has now established a 10-member independent committee to investigate the deaths.
The panel is chaired by retired DSS Deputy Director-General Jonathan Kure and includes Senior Advocate of Nigeria Isa Hayatu Chiroma, a retired senior police officer, a professor of histopathology, representatives of the Minna Emirate Council and Niger State Government, the Miners Association of Nigeria, lawyer and activist Deji Adeyanju, journalist Zainab Suleiman Okino and public affairs analyst George Agbakahi.
The committee has two weeks to complete its work.
The government has also suspended the Niger State NSCDC Commandant and 20 other officers pending the investigation.
But suspension does not establish guilt.
President Bola Tinubu made that distinction himself.
“The suspension of officers is only an administrative step and must not substitute for a proper determination of criminal responsibility where the evidence warrants prosecution.”
He also said the government would not tolerate mass deaths resulting from official negligence, dereliction of duty or failure to protect people in government custody.
What the NSCDC must now explain
The NSCDC was responsible for the detainees after their arrest.
Its own initial statement confirms that the suspects were arrested during an enforcement operation and subsequently died while in its custody.
The question is not whether the detainees were suspected of illegal mining. That issue is separate.
The immediate investigation is about what happened after the state took control of them.
The NSCDC must be able to account for the detainees from the moment of arrest until the discovery of the bodies.
That includes their physical condition when arrested, the number of people transported together, the condition and capacity of the cells, access to ventilation and water, food, medical screening, supervision, night-duty arrangements and the response when detainees began showing signs of distress.
The Federal Government’s terms of reference specifically cover many of these issues.
The mining question cannot be ignored either
There is a second layer to the tragedy.
The detainees were arrested as part of an operation against illegal mining, a problem that authorities have repeatedly linked to environmental damage and, in parts of northern Nigeria, criminal activity.
The Miners Association of Nigeria has called for a full account of the deaths while also arguing that enforcement should go beyond arresting miners working at the bottom of the chain.
MAN National Publicity Secretary Fatai Kolawole said:
“MAN has no wish to shield anyone who mines outside the law, but a suspect is not a convict and no arrest, however justified, should end with dozens of people dead within days.”
The association asked authorities to disclose who was arrested, why they were arrested, where and how long they were held, what medical attention they received and what caused each death.
Were the people arrested actually the individuals responsible for the mining operation, or were labourers and artisanal miners simply the easiest people to apprehend?
The answer matters because effective enforcement of illegal mining should identify the people financing, organising and profiting from the activity, not merely those physically present at a mining pit.
A tragedy that began with illegal mining but ended in government custody
The deaths expose two separate enforcement problems.
The first is the persistence of illegal mining in Niger State.
The second is how the government treats people once they are arrested.
A person suspected of an offence remains entitled to basic protections while in custody. Nigeria’s Constitution guarantees the right to life and respect for human dignity.
That principle does not disappear because the detainee is suspected of illegal mining.
Indeed, President Tinubu acknowledged this directly, saying that suspicion of illegal mining does not remove a person’s right to life, dignity and humane treatment while in government custody.
The investigation is now the real test
The deaths of 37 people cannot be explained simply by saying they were suspected illegal miners.
Nor can the survivor accounts by themselves establish that suffocation or chemical exposure caused the deaths.
The investigation therefore has to move beyond competing narratives.
The Nigerian Bar Association has also called for evidence to be preserved and for surviving detainees and material witnesses to be protected so they can give their accounts without intimidation.
The Miners Association has demanded that forensic and autopsy findings be made public.
And the Federal Government has promised a transparent investigation.
