SASKATOON -- Humboldt Ambulance and STARS Ambulance took four people to hospital Wednesday after a head-on collision on Highway 5 west of Humboldt, RCMP say.
One man had to be extracted from the wreckage, according to a news release.
The two drivers, both men, remain in hospital in Saskatoon with serious injuries.
One other man is also hurt and remains in hospital.
A boy has been released.
The investigation continues.