There are major delays across Sydney’s rail network after overhead wires came down onto a passenger train.

The South Coast Line service was travelling between Redfern and Erskineville, in Sydney’s inner west, when the wires came down about 5pm.

Transport authorities have isolated power to the train and are working to safely remove passengers.

Sydney Trains’ head of rail operations, Jas Tumber, said the cause was unknown.

“This is a really significant disruption that’s causing really wide ripple effects,” he said.

“We obviously don’t know the cause of that at the moment, but we are working to understand and get response teams out to that particular train.

“That has resulted in us having to remove power between Central and Newtown on two of the six tracks that go in and out of the city.”

Sydney Trains said there would be delays and gaps in services across the network for the rest of the day.

It has significantly impacted the T2, T3, T8, T1, North Shore and the Western Line, as well as the T9 services.

“We also have an impact to our intercity customers who are leaving from Sydney terminal, so because of this power outage, we’re not able to operate any intercity services that are going west or north,” he said.

He recommended passengers catch a suburban train to Blacktown or Parramatta.

“Those trains that typically would have come in from the west and the north or into the city, they’ll be turning around at Parramatta, Strathfield or Hornsby,” Mr Tumber said.

Passengers are advised to allow plenty of extra travel time and consider alternative travel options.

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