Three labourers fell sick after inhaling toxic gas at a tannery in Jajmao area here.
The incident happened yesterday in Humera tannery when the lid of a tank containing raw materials for making leather got opened and the three labourers working in close proximity to that area inhaled the poisonous gas and fell unconscious.
The three workers -- Triloki (35), Vikram (32) and Amarnath (41) were rushed to a hospital where condition of one of them is stated to be critical, police said.
