A statement by army spokesman, Maj.-Gen. Onyema Nwachukwu, on Friday, said troops also rescued the victim and apprehended the suspect.
Mr Abdullahi further said Mr Ayuba was asked to help retrieve some women’s wrappers that fell inside a well.
“We found that the fire was in a generator room where two diesel tanks and four sets of generators had been completely razed,” the Kano firefighters said.
The victim was using his mobile phone in the toilet when it fell inside and he went to get it from the sewer but did not make it back alive.
