Unknown gunmen Thursday shot to death a Shia Muslim cleric near southern Pakistani industrial city of Karachi, known as hotbed of sectarian violence, said police. Maulana Maula Bakhsh Jaffry was returning to home from mosque in Kandhkot town, about 450 kilometers northeast of Karachi, when armed motorcyclists rained bullets at his vehicle, a local police official, Riaz Muhammad Khan, told KUNA.He said Malulana Jaffry was seriously wounded in the attack and succumbed to injuries in the hospital. He added that his driver died on the spot. Following the incident, angry residents and relatives staged a protest demonstration and blocked the main highway. Riaz Khan said police used baton charge to control the situation.