A man has died at Tempe railway station on Wednesday morning, forcing the closure of a section of the rail line.
Train services were closed between Sutherland and Bondi Junction on the T4 Eastern Suburbs and lllawarra Line and the South Coast line.
Trains were initially paused after a trespasser was seen running on the tracks about 7.30am. It was later confirmed by police that the man was hit by a train and died.
The lines reopened shortly before 8.30am, but delays were still being felt throughout the network more than three hours later. The Transport Management Centre has warned commuters that the delays could continue for a number of hours.
However, the centre is confident that all services will return to normal in time for the commute home on Wednesday afternoon.
The centre is urging people to delay non-urgent travel, to make alternate travel arrangements or to allow extra time with travel plans.
A number of services have been cancelled and Sydney Trains is urging passengers to listen to announcements and use real-time transport apps for the most up-to-date information.
City-bound trains are now stopping at Wolli Creek, after earlier passing through the station.
Shuttle trains are in operation between Sutherland and Cronulla and between Central and Bondi Junction.
Earlier in the morning, passengers travelling on the line reported considerable confusion, with station staff delivering mixed messages.
Police are treating the man's death as suicide.
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