Some unidentified gunmen killed two people while three others injured in Punjab Chaurangi, Karachi. Police arrested three suspects, a private TV reported. Two car riders open indiscriminate firing killing a person and injuring four others in the limits of Clifton Police Station. The injured were shifted to Jinnah Hospital where an wounded succumbed to his injuries. Police said that both the deceased were security guards and termed personal vendetta the reason behind the incident.