Tram services have been suspended in Sheffield after a hole opened up near the tracks at Park Square roundabout.
The blue and purple routes have been suspended between Sheffield railway station and the city centre since the hole was discovered on Saturday.
The Star understands that it affects a post holding electrical wires that run above the tram, which is why services have been suspended.
The yellow route from Meadowhall to Cathedral is unaffected, and replacement buses are serving tramstops from Cathedral to Middlewood and Malin Bridge.
Experts are examining the scene this afternoon.
A spokesman for Supertram said: “Although the problem is not with the tram infrastructure itself, due to its proximity to the network, it had the potential to affect the safe running of this part of the Supertram system and for that reason the decision has been taken to temporarily suspend services through the area until the embankment has been fully assessed by an expert.”
“We would like to apologise to passengers for any inconvenience this may cause.
“We are working with South Yorkshire Passenger Transport Executive to resolve the problem as quickly as we can and we will resume normal service for our customers as soon as possible.
“Passengers travelling between the City Centre and Manor Top are able to use their tickets on Stagecoach bus services 120.
“Blue and purple trams are running from Halfway or Herdings Park from and to the station only.”