QUETTA: A bomb blast in a PCO killed one and injured at least 13 people including two paramilitary personnel on Thursday in Kohlu. The bomb was placed inside the PCO. Kohlu District Mayor Ali Gul Mari said that it was an act of terrorism that targetted innocent people.Ali Gul Mari was out of Kohlu for two months supporting the Mari tribesmen against security forces. He said the district government in Kohlu had started functioning and a session of the district assembly would be convened soon. Mari and Bugti tribesmen have claimed that more then 200 people have been killed ina three-month long military action, but officials could not confirm the figures. Two government officials belonging to Punjab province were shot dead and another injured a few days ago.