The Sydney morning rush hour has been thrown into chaos, with multiple train lines impacted by urgent repairs, delaying thousands of commuters.
The T1 North Shore and Western Line, T2 Inner West and Leppington Line, T5 Cumberland Line and T7 Olympic Park Line have been impacted.
Urgent signal repairs are required at Harris Park, according to Sydney Trains.
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On the T1 line, services may be less frequent and stops may change at short notice.
On the T2 line, trains that normally run to Parramatta will end or start from Granville instead.
The T5 line is not running, and commuters will need to catch a T1 or T2 train to either Granville or Lidcombe and change there to complete their journey.
On the T7 line, trains are running at a reduced frequency between Lidcombe and Olympic Park due to urgent signal repairs.
