There’s chaos on public transport this morning after a fatality on the train tracks.

An initial warning released before 7am stated there were delays due to a “trespasser” on the tracks.

Later it was advised that there had been a fatality.

Massive delays are in place on the T1 Western line after the tragedy occurred at Wentworthville this morning.

Carriage announcers have been advising people catch the bus instead.

Passengers travelling towards Blacktown away from Parramatta are advised to delay their journey or make alternative arrangements while emergency services are on-site.

#WesternLine: MAJOR DELAYS due to a fatality at Wentworthville. Please allow plenty of extra travel time.

Check indicator boards and listen to announcements as stopping patterns may change. pic.twitter.com/gYcMCPiGBC

— T1 Sydney Trains (@T1SydneyTrains) December 10, 2017