Mumbai, Three workers were killed in the explosion and about 25 others injured in explosion at an industrial unit in Dombivili township of Thane district today.

District Disaster Control Officer Dinesh Kurhade said, "The mishap occurred when cylinders exploded leading to a fire in the chemical manufacturing unit of Herbert Brown Pharmaceutical & Research Laboratories at Shivaji Udyog Nagar of MIDC phase-II area in Dombivili (East)".

More than a dozen fire tenders were at the site to douse the flames, Kurhade said. Chaos prevailed in vicinity of the industrial unit where the blast occurred.

The injured workers were rushed to various hospitals. Thane District Collector Dr Mahendra Kalyankar and Municipal Commissioner E Ravindran were monitoring the rescue operation.