Trains across Melbourne are starting up again after a temporary citywide shutdown due to a communications outage across the network.
Metro Trains has urged commuters to delay their travel this morning or seek alternatives.
Major delays are still expected after the shutdown hit all lines across metropolitan Melbourne.
Metro Trains on X, formerly Twitter, said replacement buses may be put in place.
There have been reports the shutdown was linked to a major Optus outage around Australia.
Telstra prepaid customers are facing difficulties recharging their services due to a “high demand”, as a huge Optus outage affects Australians across the country.
More than 10 million Optus customers have been impacted by the Optus network outage that began about 4am on Wednesday.
While the Telstra network appears to be up and running, customers on its prepaid plans are having difficulties recharging.
“We’re experiencing very high demand to recharge prepaid services right now,” a Telstra spokesperson told 7NEWS.com.au.
“You can still recharge by calling #100# and following the prompts.”
The telco added it was looking to “increase capacity to manage the load”.
Over 440 Telstra customers reported issues making calls at 9.30am on Wednesday, according to DownDetector.
Meanwhile, several other providers on the Optus network such as Moose Mobile, Dodo, Coles Mobile, Aussie Broadband and Amaysim also appear to be impacted by the outage.
(7 News / 9 News)
