At least one person was killed and nine others injured in a bomb blast here on Sunday. Police said that unidentified culprits had planted a bomb in a motorcycle parked in Mazdoor Chowk of Dera Murad Jamali which exploded with big bang. As a result of explosion one person died on the spot while nine others were critically injured. The body and injured where shifted to local hospital for medico-legal formalities. The security forces cordoned off the area after the blast and launched search operation.