Buses are replacing trains on the South Coast Line between Waterfall and Wollongong, in both directions, due to urgent overhead wiring repairs at Thirroul.
Trains travelling away from Sydney will terminate at Coalcliff.
Passengers travelling beyond Coalcliff should change at Waterfall for buses towards Wollongong.
Passengers should allow extra travel time, listen to announcements and check information displays for service updates.
Trains between Wollongong and Kiama are running normal.
For the latest transport information, visit www.transportnsw.info
Image: NSW TrainLink