At least seven people have been killed late last night in acts of violence in different areas of the city of Karachi , Pakistani SAMAA TV and News channel reported on Saturday. According to Pakistani police sources, two people were killed in Osman Abad area while another one was killed near a petrol station near Nazimabad area. In a separate incident of firing, a man was killed near Rizwia Society police station, SAMAA reported. The police sources meantime said tortured dead bodies of a boy and a girl were recovered from Ilyas Goth, Liaqatabad C-1 Area. Both were shot in the head. Police shifted their bodies to the Abbasi Shaheed Hospital for legal formalities.