Sydney Trains have confirmed major delays across the T1 North Shore & Western Line, as well at the T9 Northern Line, today.
The delays come as a result of urgent overhead wiring repairs taken at Hornsby Maintenance Centre earlier this morning.
On top of these delays, all trains ceased stopping at Town Hall station at around 7:10am this morning due to a fire safety alarm being activated.
Services have since resumed, however, Sydney Trains are advising those who were unable to tap-off during the activation to find help here.