Some serious train pain this morning.

The Mernda and Alamein lines are now suspended

Buses are replacing trains between Riversdale and Alamein due to a track fault near Willison but not be there till around 7am.

Buses are also on their way, replacing trains between Mernda and Epping due to an equipment fault.

Metro Trains is urging people to consider alternative transport options.

UPDATE 7:02AM: Train services have resumed on the Mernda line after an earlier equipment fault.