Three persons were killed by the firing of unknown culprits who were on motorcycle in the Chancier Ghot and Kore while in an other separate incident businessman was injured here on Monday. According to police sources, during clashes between two groups of drug peddlers in the area of Chancier Ghot Abdul Aziz and his partner Murtaza Lassie were killed. However, later in view of intense situation in the area, rangers and police have been deployed. Meanwhile in an other separate incident in Kore, Nasir Colony of Karachi where armed persons opened firing and killed 25 years old Shahzeb. He was working in garments factory and had quarrel with the workers of political group whereas it was a result of that row, SHO Kore Industrial Area told.