OKARA-A police head constable serving at Sahiwal Central Jail was shot dead by two unidentified armed men near 52/3-R village the other night.Muhammad Ashraf, resident of 56/4-R village Noor Shah, Sahiwal district was on the way back to central jail on a motorcycle. In the meanwhile, he was intercepted by two unidentified armed men. They shot the cop dead and fled on his motorbike. Police took the body into custody and recovered a cellphone and cash from the deceased. Later, an FIR No 259/17 u/s 302 and 396 ppc was registered against the accused with the Okara Cantt police on the complaint of Waqas, son of the deceased cop.