Karachi (HRNW): Three criminals were injured and arrested with arms, bike, and other looted valuables after an exchange of fire here on Saturday. Robbers shot injured father and son upon resistance, police said During an operation against outlaws in Malir city, criminals opened fire at police which led to an exchange of fire. Three criminals were injured in the retaliatory firing of police and arrested besides recovery of arms, snatched bike, cash, cell phones, and other looted valuables. In Korangi No 4 Karachi, armed robbers shot injured father and son upon resistance during a robbery attempt. The injured of both incidents were shifted to different hospitals of respective areas and the police after registering separate cases at concerned police stations have started investigation.