An investigator with the Ministry of Labour is expected to be in Fort Frances today looking into yesterday's accident at Resolute Forest Products.
A dust explosion and subsequent fire at the company's biomass boiler sent an unnamed worker to hospital with serious burn injuries.
The man was last listed in critical condition.
A company spokesperson says they're also trying to determine the cause of the accident and that their main focus is with the employee and his family.
Operations at biomass have since resumed.