At least four people have died and over a dozen have been hospitalised after a toxic gas leak in Kemari area of Karachi over the past two days.

According to a hospital spokesperson, at least 22 patients were brought to the hospital in the last two days and all of them were complaining of breathing problems. 18 were discharged after they were given medical attention, while four died during the treatment.

The spokesperson of Ziauddin Hospital said that the deceased had the same symptoms as the people who were brought to the hospital in February after purported soybean dust in the area had caused many residents to fall ill.

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The incident came under the spotlight after a release of a statement by the hospital that raised alarm over the worsening situation. The government authorities, on the other hand, are still clueless as to what was happening in the area, just like the last time when over 14 people lost their lives to to mysterious gas leak in the same area.

In February, alleged soybean dust had killed over 14 and affected 300 people.

A report compiled by the International Center for Chemical and Biological Sciences (ICCBS) at Karachi University had found aeroallergen from soybean dust in blood samples collected from the people who died.