KARACHI (NNI) - At least six more persons were killed while four others were injured in fresh row of violence here on Wednesday, police said. According to details, some unknown attackers opened fire in Khada Market area of Lyari and killed 3 persons on the spot. The firing victims were identified as Hamid, 35, Waqas,33 and Imran, 26. Another unidentified 35-year old person was shot dead by unknown culprits in Landhi areas Future Colony. Police moved his body to Jinnah Hospital. Two more persons lost their lives and four others including woman sustained injuries in various firing incidents in different areas of the metropolis.