Deaths in detention cells in Nigeria were entirely preventable, inquiry finds

The investigating committee found that the raid on the miners had been conducted without an approved operational order, proper planning or consultation with the Mining Marshals Unit.

It said that 50 detainees had been held in a cell measuring about 20 sq m, with no running water or functioning toilet, and inadequate food, drinking water and airflow.

Adults and minors were detained together, and some detainees were held beyond lawful detention periods.

Officers reportedly ignored repeated calls for help, despite a medical worker having raised concerns about the conditions.

"Detainees repeatedly banged on cell doors and walls, shouted for assistance and pleaded for water," said the head of the investigating team, Jonathan Kure.