Three men who were cleaning the boiler in a factory in Ramanagaram, died of suffocation.
Police said, that the trio were cleaning a boiler at the Anthem Biosciences factory located in the Harohalli Industrial Area, Ramanagaram district.
The trio have been identified as Lokesh of Mulabagil taluk, Mahesh of Kanakapura taluk and Sharavana of Tamil Nadu.
Hari Villighan, the fourth worker, was rushed to hospital in a serious condition.
The Harohalli police have registered the case.
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