This is contained in a statement signed by the Spokesman of the command, El-mustapha Sani, and made available to the News Agency of Nigeria (NAN) in Sokoto on Sunday.

Sani said that the incident took place on Saturday at the old Airport Area of Sokoto city.

He said that the suspect had killed his wife with a pestle and used the same pestle to kill three other persons.

The victims, according to him, were: Rachael Adewole, 42, Dennis Adewole,10, and Esther Badelu, 14, all of the same address.

The police spokesman further said that the pestle had been recovered as an exhibit, while the case was being investigated by the command's Criminal Investigation Department.

''All the corpses had been deposited at the morgue of the Usmanu Danfodiyo University Teaching Hospital, Sokoto, for post mortem,” he added.