Five young men have been taken to hospital after a car rolled into a drain on Taihape Rd, near Hastings.
Witnesses at the scene said two were trapped in the vehicle, which was lying on its roof in the water, for several minutes after the crash on Sunday, about 11.30am.
All five were taken to Hawke's Bay Hospital for assessment.
A spokeswoman for Hawke's Bay Hospital said one of the victims, a male teenager, was in a serious condition in the ICU.