Further probe was on, the police said. (Representational)
Four workers died after inhaling a poisonous gas while cleaning a chemical effluent tank at a textile factory in Ahmedabad district on Saturday, the police said.
The incident took place on the premises of Vishal Fabrics, a unit of Chiripal Group, in Koth area of Dholka town.
"Four workers died after inhaling poisonous gas inside the chemical waste tank when they entered to clean it," said senior police official Nitesh Pandey.
Further probe was on, he added.