Meanwhile, factories, companies, schools and colleges in Keamari have been closed owing to gas leakage.

Forensic Science Lab of Karachi University also stated that soybean dust could be linked with the latest deaths and breathing issue cases in Karachi.

Blood and urine samples of the victims were taken during the preparation of the report.

However, Dr Ataur Rehman said that such incidents have also occurred in other countries.

But government has not agreed with such viewpoint and continue to probe the matter.