Four workers asphyxiated inside soap factory well.

LAHORE -- Four labourers apparently died from asphyxia in a soap factory waste well, they were hired to clean, in Multan late on Friday night.

According to Rescue 1122 officials, the labourers, identified as Irfan Lateef, 22, Chand Ashraf, 25, Arshad Nazir, 28, and Amanat, 30, were assigned the job of cleaning a well where scum left during soap manufacturing was dumped in a private soap factory located near Basti Larr on Bahawalpur Road, Multan.

The officials said initially one of the workers went down the well to clean it, but did not return after considerable time as he fell unconscious and died after inhaling the fumes of the chemicals in the waste.

He said later three other labourers went down the...