Auckland Transport is warning of delays after Western Line trains were suspended between Mt Eden and Morningside due to a trespasser at Kingsland.
Auckland Transport tweeted an alert at 11am on Thursday warning the public.
Police are currently looking for a person, as they have concerns for their welfare.
"Police have arrived on site," Auckland Transport tweeted.
"Please expect some minor delays on the Western Line as services return to normal schedule."
Newshub.