Police are urging the public to stay away from Auckland's Albany Bus Station as they respond to an incident where two people have been injured.
Officers were called to the scene just before 1pm on Monday.
One person is believed to be in a critical condition and the other has received a minor injury.
Police are asking the public follow instructions from emergency services and avoid the area where possible.
Ambulances and emergency services respond to an incident at Albany Bus Station, North Shore, Auckland on 18 September, 2023. Photo: Supplied / Brett Napier
Inquiries are underway to locate the person responsible.
Auckland Transport says an altercation broke out between members of the public resulting in the injuries.
In a statement, AT's Stacey van der Putten said the attack would have been a shock to passengers and staff.
"Events like this afternoon's attack are a very rare occurrence across our AT Metro network ... Our teams are fully supporting police as they begin their investigations today and we are asking passengers for their patience while Albany Bus Station is closed and detours are in place.
"While Albany Bus Station is closed we are detouring all buses which stop at the station to a series of bus stops along Don McKinnon Drive and AT staff will be on the ground to help our customers navigate these detours."
The agency was looking into how it could increase security at large stations like Albany, van der Putten said.
Ambulances and emergency services respond to an incident at Albany Bus Station, North Shore, Auckland on 18 September, 2023. Photo: Supplied / Brett Napier