PESHAWAR - A police personnel was killed when his colleague opened fire on him in Peshtakhara Square here on Friday. Police sources said that both the police personnel identified as Shehzad and Hasan Rasheed were on duty in Peshtakhra Square, adding that over some dispute they exchanged harsh words with each other. They said Shehzad, resident of Peshtakhara, opened fire on Hasan Rasheed leaving him dead on the spot. Peshtahra Police rushed towards the site and arrested Shehzad while taking his weapons into their possession, they said. They said Shehzad also sustained minor injuries and was later shifted to hospital in police custody.