A man lost his life after an explosion caused by a gas leak ripped through an office in North Nazimabad area of Karachi on Saturday, reported 24NewsHD TV channel.
According to fire-brigade personnel, the blast occurred in an office of computer equipment and it badly damaged the roof and the wall.
Sources in police said the deceased was a watchman at the office.
After getting information, a heavy contingent of Rangers and police along with ambulances of the rescue department rushed to the explosion site.
They also called the bomb disposal squad to the site as a precaution.
Reporter Shazaib Hussain