A car and the Northern Explorer train have collided on a rail crossing north of Ohakune.
The accident happened on Matapuna Rd in Horopito, about 10km north of Ohakune, about 1pm.
The car was carrying two young men.
The passenger was believed to have serious injuries and the driver moderate injuries.
Both were taken by the Palmerston Rescue Helicopter to Wanganui Hospital.