KARACHI - As many as seven persons were killed in different incidents here on Tuesday. According to details, a person was shot dead during exchange of fire within the limits of Awami Colony police station. During exchange of fire between the rival groups affiliated with political parties at Bilal Colony within the limits of Awami colony police station one passerby shot dead. The police said that tension between the rival groups including MQM and ANP has been continued for last couple of days which led to intermittent firing. During the exchange of fire, an unknown passerby sustained bullet wounds and died on the spot at Lane 15, Bilal Colony. In another incident, a person shot himself after killing his wife in No. 10, Fareed Colony within the limits Mominabad police station. The police said that accused Muhammad Khalid got married with Naseeb Bibi some three years ago but they were still issueless. The police added that Khalid had a doubt on his wife due to which he killed her first and later shot himself. Naseeb Bibi died on the spot while Khalid was rushed to a local hospital with critical injuries. The deceased hailed from Kala Dhaka. His body has been handed over to his family after autopsy while the police registered the FIR against the accused. Meanwhile, a cop shot dead over resistance at Baldia 12, Saddam Chock with the limits of Baldia Police station. The police said that the two bandits barged into the house and started looting valuables. Meanwhile, Sarwar Shah, 40, tried to get hold of the bandits when one of them shot him and managed to flee. The deceased sustained bullet injuries and died on the spot. The police registered a case against unknown culprits. Businessman of Shairshah market killed after kidnapping. The police said Nazir Ahmed Nawa Lane, Lyari, was going to a local market when unknown armed men kidnapped him. The police later founds his tortured body at Jamila Street, Ghas Mandi, and took it to the Civil Hospital Karachi for autopsy. The deceased, identified as merchant, had a shop at Shairshah market. The police registered a case against unknown culprits on complaint of deceased cousin Kamran Bux. Another similar incident took place at Rnchor Line, Kapra Market, where unknown gunmen thrown the shot dead body tide with rope and managed to flee. Separately, unknown gunmen shot dead a man over personal enemy within the limits of Mochko police station. The police said that gunmen arrived on a motorbike at a PCO located at Itahad Town and called out Zakir Warid and opened fire at him. Later, the culprits managed to flee while the injured was rushed to a local hospital, however, he succumbed to his injures on the way to hospital. The police suspect personal enemy behind the murder and registered the case. Meanwhile, the police found a dead body from Farqir Goth within the limits of Gulshan-e-Memar police station. The burn marks were visible on the hands of the deceased. The body was shifted to morgue after autopsy.