Karachi- Six people were killed in different firing and violent incidents across Karachi today. According to police, four people were shot dead in different shooting incidents in the areas of Gulbahar, Manghopir, Frontier Turn, Baldia Town and Moach Goth. One person was gunned down and another was injured when an unknown man opened fire during a scuffle at Madina Colony. An unknown body was recovered from under the Lasbela Bridge. On the other hand, six year old Zainab and four year Hafizullah were killed in a roof-collapse incident at Korangi 100 Quarters.