KARACHI: Unknown persons fired shots at a DSNG vehicle of Dawn News in Karachi on Friday, wounding a satellite engineer, TV channels reported. The attackers fired straight shots at the DSNG van near Essa Nagri, leaving technician Hassan Mateen severely injured. Mateen has been taken to a private hospital for treatment.Doctors moved him to operation theatre, terming his condition critical. Arshad Ali Jafri, a Satellite Engineer at Geo News, was killed after a similar gun attack on Geo team in Karachi a week earlier.Meanwhile, Pakistan Broadcasters Association (PBA) and Pakistan Federal Union of Journalists (PFUJ) has strongly condemned the attack and called on authorities to take action against perpetrators of anti-media violence.