Train pain hits Melbourne again

It's another morning of commuter pain in Melbourne with delays across the train network.

The Craigieburn line has been suspended after a container truck hit the Mount Alexander Road Bridge on Wednesday morning, with replacement buses currently being arranged.

Passengers are being urged to seek alternative transport if possible.

A faulty train in the City Loop has caused delays of up to 10 minutes on the Sunbury, Upfield, Werribee and Williamstown lines, and a signal fault at North Richmond has caused delays on the Alamein, Belgrave and Lilydale lines.

Major delays are also on the Frankston and Glen Waverley lines due to further signalling issues.