A nine-year-old boy and 13-year-old boy remain in critical condition at the IWK Health Centre in Halifax after a crash that injured five people on Nova Scotia's South Shore earlier this week.

The crash happened in Oak Hill, close to Bridgewater, on Route 325 where it intersects with Naugler Road. RCMP shut down the road in both directions for several hours on Tuesday.

RCMP said a Ford Focus with three people on board collided with a sport utility vehicle with two people inside at 3:30 p.m.

The three people in the Ford — a mother and her two sons — had to be removed from the vehicle using the Jaws of Life, according to RCMP Cpl. Jamie Vacon.

One of the boys was airlifted to the IWK Health Centre. The other boy and his mother were taken to a Halifax hospital.

Oak hill crash

Two boys, ages 9 and 12, remain in critical condition following the crash on Route 325. (Keith Corcoran/southshorenow.ca)

The IWK Health Centre confirmed Wednesday the two children injured in the crash — boys aged nine and 13 — remain in critical condition with unstable vital signs.

Initial reports after the crash said all three people were airlifted to hospital, but Vacon said Wednesday only one of the boys was transported by helicopter.

The people in the SUV were taken to South Shore Regional Hospital with undetermined injuries.

Daniel Hubley, who owns Performance Sport & Leisure not far from where the crash occurred, said the road was snow covered and icy.

"We had quite a snow squall here, I'd say around 3, 3:30 p.m. We didn't even know there was an accident, everything was quiet, I would say from the wind and the storm. It was a white out and the road was covered quick," he said.

"Nobody was slowing down — it didn’t seem like at all — until this happened. Then everybody slowed down."

Vacon said police do not yet know what caused the crash.

"At this point the RCMP is asking that anybody who has information to come forward," he said.

"We'd really like to hear from people if they were witnesses to this motor vehicle collision, given the seriousness of it."