They asked commuters to refer to the journey planner for alternative travel arrangements and to ask staff for advice at the station if any issues arise.
Police said Chalmers St was closed while emergency services cleared the scene.
“The Auckland Railway Operations Centre has confirmed all rail services on the Western Line north of Avondale have been suspended until further notice.
“Police and Railway Operations are undertaking enquiries to establish how the crash has occurred,” said the spokesperson.
A Hato Hone St John spokesperson said they were notified about an incident on St Georges Rd and Chalmers Street in Avondale at 8.20am.
One patient was assessed and treated at the scene but did not need to go to hospital.
More to come.