Three labourers died after inhaling toxic gas in an under-construction factory at Karnaphuli EPZ in Chittagong today.

Deceased Shah Alam, 30, Md Arif, 28, and Rezaul Alam, 31, were hired by SOS factory in Karnaphuli EPZ of the port city, reports our correspondent quoting Gazi Shaokat Akbar, assistant sub-inspector of EPZ Police Station.

The labourers entered the septic tank to weld it around 12:00 noon, where they died after inhaling the toxic gas, said Akbar.