PESHAWAR A policeman was killed and three others got injured when their vehicle was targeted with a remote-controlled device here at Ahceni Bala area on Ring Road on Friday. Police sources said that the vehicle of Peshtakhara Police Station was on routine patrolling when a remote-controlled device planted by unknown persons hit it. The blast judged the vehicle badly. The injured were shifted to Hayatabad Medical Complex. The killed person was identified as Shabbir, while the injured included ASI Iftikhar, Constable Shah Masood and Constable Amjad. The condition of the injured was stated to be stable. Soon after the blast police and bomb disposal squad rushed towards the site and cordoned off the area. They collected evidence from the blast site. Talking to media persons, SP Cantonment Shafiullah said that around three kilograms explosive material was used in the attack.