A person on the railway track near The Strand in Tauranga was hit by a freight train just after 3pm today, Kiwrail says.
A person in a serious condition was treated at the scene and taken to Tauranga Hospital, a St John Ambulance spokeswoman said earlier.
St John was called at 3.09 pm and an ambulance and a rapid response vehicle attended the incident.
A police spokeswoman said police received a call to assist at around 3.11pm.
Police said about 5pm they were "still working to determine the exact circumstances surrounding this incident".