In breaking news, a grass fire at Seven Hills is causing train delays.
T1 Sydney Trains tweeted about the fire just before 6pm, with services held at Blacktown due to the grass fire as it was brought under control.
At 6.15pm it was stated that emergency services are now allowing trains through Blacktown.
The fire is still burning with some delays continuing.
According to the NSW RFS, the fire is burning on Jean Street in Seven Hills.