The Ministry of Labour is investigating after three workers were injured at Glencore.

MOL spokesperson Janet Deline says the incident happened at Sudbury Integrated Nickel Operations on May 9th, when the worker came in contact with a substance causing the injury.

Sudbury Police are saying a 56-year old man was taken to hospital in critical condition while a 55-year old man and 46-year old man were treated for non-life threatening injuries.

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