It has been reported that the man was taken to hospital after being knocked down on King Street this morning (Tuesday).
Emergency services were called to the scene, close to Mecca Bingo, at around 11am.
A Greater Manchester Police spokesperson said: "At around 11am on Tuesday, November 28, officers were called to reports of a road traffic collision involving a tram and a pedestrian on King Street in Oldham.
"Emergency services attended the scene a man was taken to hospital with serious injuries.
"No arrests have been made and there is currently a scene in place while officers conduct further enquiries."
Metrolink services in Oldham ground to a halt due to the ongoing 'police incident'.
