The attack came hours after a suicide bomb attack at a Mosque in Kano on Monday.
Similar explosions killed 44 people in Jos, Plateau State, on Sunday, the same day six persons were killed at a church in Potiskum, Yobe State, by a suicide bomber.
A resident of Zaria, Umar Mohammed, told PREMIUM TIMES Tuesday’s blast occurred at the local government secretariat where civil servants’ screening was taking place.
He said it was unclear who the bomber was, but said the attacker detonated explosives in the middle of the crowd.
“I have seen more than 10 bodies on the ground,” Mr. Mohammed told PREMIUM TIMES.