Police Constable Nazeer Ahmed was killed near Karachi's al-Aasif square when an unidentified person opened fire at a police car, Dawn News reported.
In another incident, an unidentified person opened fire in Orangi No. 4 area of Karachi, killing two relatives. Three men were shot and killed in areas of Sohrab Goth's Super Market.
A man was killed in Keemari's Sikanderabad area and another man died in firing incident in Surjani town's Khuda ki Basti area.
And, a woman was fatally shot in Rehri Goth in the Landhi area of Karachi.