Delays are expected to continue for several days on the T8 Airport and South Line after a car crashed into a signal box early Monday morning.

Some trains are being diverted via the T3 Bankstown line – which may also be affected as a result. “This may mean a slightly longer journey time for customers who usually travel on these services,” a Sydney Trains spokesperson told Broadsheet on Tuesday morning.

It is not known how long the delays will continue.

A car crashed through a two-metre high fence into signalling equipment at Riverwood Station in Sydney’s south at 1.55am on Monday. Consequently, Sydney Trains had to switch from automatic to manual signalling for a stretch of the line. The damaged equipment is linked to four signals.

The Sydney Trains spokesperson said frequent services will continue to run to Sydney Airport’s domestic and international terminals,

“Extra customer service staff and train crews are on hand to assist customers, and if required, buses will supplement train services,” says the spokesperson. “As this is safety critical infrastructure, once installed, the signalling system will need to undergo extensive testing before services can resume to normal.”

Sydney Trains encourages passengers to plan ahead, look at real-time apps, listen to announcements and check screens before boarding trains.

Visit transport.nsw.info for more information or download the Transport NSW app here.