The labourers pleaded guilty and begged for mercy.
Mr Hassan said the detention of the suspects for alleged complicity was sequel to a viral video showing a person buried with only his head left out.
The labourers were accused of stealing a door handle and engine valued at N250,000, from their employer.
Rescuers scrambled for several hours through the rubble to retrieve bodies.
The defendants pleaded not guilty to the charge against them.
Rescue operation to resume by 8:00 a.m. Tuesday.
“Preliminary investigation showed that the two storey building collapsed as a result of the use of low quality iron rods and other materials in its construction.”
Gambo Isa, police spokesman in Katsina, said that the police were on the trail of the abductors.
The defendants were admitted to bail of N2 million each with two responsible sureties in like sum.
