As yet unidentified gunmen attacked a police mobile at Nagan Chowrangi area of the metropolis, killing at least three people including a minor girl earlier yesterday.
According to sources, one of the deceased, identified as Abid, was a security guard of Muttahida Qaumi Movement (MQM) leader Nasreen Jameel.
The minor girl killed in the incident is a daughter of Atiq, a friend of Abid, who also lost his life in the incident.
The law enforcement agencies arrived at the site soon after the incident and commenced investigations.
