MARDAN:- An alleged killer of two children was gunned down during an exchange of fire with the police in the limits of Katlang police station on Saturday.  In a press statement issued from the office of the District Police Officer, the accused identified as Imran alias Khata, a resident of Katlang, on 21st February, allegedly opened fire and killed two children Arman and Bilal, and also injured Safina at tehsil Katlang. Police registered a case against the accused under Section 302.  Police said that acting on a tip-off, a police party reached his house to arrest the accused. The accused started firing at the raiding police party and Imran was killed in the crossfire.–staff reporter