QUETTA - An accused was killed and two policemen injured in an exchange of fire in Jaffarabad on Saturday. Reportedly, unidentified gunmen opened indiscriminate fire on policemen in Usta Muhammad in the limits of Capital Farm Police, injuring SI Ghulam Haider and Constable Daria Khan Umrani critically. In retaliation, police gunned down an accused person identified as Sheik Jan. The injured policemen were rushed to hospital where condition of both the injured was stated to be serious.