SUDBURY -- The Porcupine Health Unit is declaring an outbreak of COVID-19 at the Glencore’s Kidd Operations Mine Site in Timmins. "To date, three employees are confirmed cases of COVID-19 and the investigation has determined that the cases are related to the workplace," the health unit said in a news release. "The cases are currently in self-isolation." The health unit is working with the workplace to ensure infection prevention and control measures are in place, the release said. "The management team at Glencore’s Kidd operations mine site is taking all the necessary precautions to reduce the risk of infection and prevent the transmission of COVID," the release said.