Passengers are being warned a loss of power across parts of Greater Manchester’s Metrolink tram network could affect rush-hour commuters.
All services on the Ashton-under-Lyne line and those that pass through Manchester city centre are out of operation after damage to overhead power lines.
Ian Davies, of Transport for Greater Manchester, said staff were investigating the problem “as a matter of urgency”.
He said the disruption “could last for some time and potentially affect peoples’ journey home from school and work later”.
The issues affecting a pantograph – a mechanical attachment used to connect trams to overhead power lines – were reported by a driver at about 10:15 BST.
Passengers can show their tickets or travel passes to use local buses while the trams are out of action.
The majority of services are still operating but stopping short of the city centre.
Services from Bury and Rochale to Manchester Victoria remain unaffected, while trams from Manchester Airport and East Didsbury are terminating at Firswood.
The line from Altrincham is open as far as Old Trafford, while trams are running from Trafford Park to Wharfside, and between Eccles and MediaCity UK.
Mr Davies, Metrolink’s network director, apologised for the inconvenience and said staff were out across the network to help advise passengers.
