At least six people died in a fire that engulfed a shopping mall in Karachi, Pakistan. The blaze erupted Saturday at the Gul Plaza shopping mall. Approximately 20 people sustained injuries. Firefighters struggled for hours to control the inferno. As of early Sunday, authorities contained about 30 percent of the fire. South Deputy Inspector General Syed Asad Raza initially reported five deaths to the Dawn newspaper. The Edhi Foundation later confirmed a sixth fatality. Rescue officials cited the densely packed nature of the commercial complex as a challenge. Investigations are underway to determine the fire's cause. Authorities are assessing the full extent of the damage.