Sydney commuters are facing yet another morning of transport chaos, with CBD light rail services suspended just a week after a major train network meltdown.

L2 and L3 services were halted between Town Hall and Circular Quay at about 10am on Thursday due to urgent tram repairs at Town Hall.

Services are still running between Town Hall and Randwick, and Town Hall and Juniors Kingsford.

Commuters are advised to use trains between Town Hall and Circular Quay.

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Sydney’s train network was thrown into chaos last Tuesday following a power issue.

Then a mechanical fault halted Sydney Metro services at Barangaroo Station, leaving commuters stranded and causing delays during the evening rush on Tuesday.