At least eight people, a police personnel among them were shot dead at Sariab Road area of Quetta on Saturday, police confirmed.   Police sources said that unknown armed men opened fire on people sitting in a laundry shop adjacent to the Sariab Mill, injuring nine persons critically. The assailants managed to escape the crime scene.   The injured identified as Gul Mohammad, a police constable, his son Mohammad Ishaq, Shair Mohammad, Nasrullah, Mohammad Umer and Abdul Hameed succumbed to their injuries on their way to the hospital.  Condition of one Mohammad Shehzad who was shifted to Civil hospital Quetta is stated to be critical. (APP)