At least three people were killed and one injured in yet another incident of target killing in Quetta on Saturday, a private TV reported. The incident took place when unidentified armed men attacked a vehicle in Kilai Sardar Karez. According to police officials, the unidentified armed men were riding on a motorcycle and the police have termed the incident as an act of target killing. The injured have been shifted to Bolan Medical Complex for treatment. At least fifteen people have been killed in targeted attacks over the last four days.