Investigators with the Ministry of Labour were called to an industrial unit in Mississauga on Monday night to look into an on-the-job death.
Peel Regional Police say there was a mishap with some equipment being operated by the business inside.
It isn't clear yet what went wrong, but authorities confirm a male patient died of his injuries.
Calls for help came in from the Dixie Road and Matheson area around 5:30pm.
Police the incident 'an industrial accident.'
No names have been released.