KARACHI: Unknown miscreants attacked an Imambargah with a cracker in Katti Pahari area of Orangi Town here on Wednesday. Sources said that the unknown attackers threw a cracker at Imambargah, which did not cause any damage. No one was wounded in the attack. However, it caused panic in the area. The attackers fled to unknown destination after swift operation. The police rushed to the scene and started search for culprits.