TfGM suspended the entire Metrolink network this morning due to an underground fire near Victoria station, which led to emergency services responding at 9:20am. Some of the services have resumed, while other lines are still closed.
Roads have also been closed due to the incident involving two KAM engineers suffering from minor injuries.
According to transport bosses’ disruptions are expected to continue into the afternoon, with local bus services accepting tickets.
In a statement, TfGM said: "A small fire – believed to have been caused by a build-up of gas – has been reported in a Metrolink chamber that has caused damage to equipment and a loss of power in the city centre.
"As a precautionary measure GMFRS requested that power to the Metrolink network be switched off while investigations get underway.
"While some services have now resumed, disruption is expected to continue, as work to restore a full service continues – it is not currently known when this will be.”
A GMP spokesperson said: "GMP is aware of an incident on the Metrolink system in Manchester city centre, and are assisting Greater Manchester Fire and Rescue Service.
"North West Ambulance Service is also at the scene following an electrical issue on Balloon Street caused by an underground fire and two people have suffered minor injuries."