Two teenagers were injured in a single vehicle rollover at the intersection of Provincial Road 311 and Provincial Road 302 early Monday morning.
Steinbach RCMP said in a statement that police responded to a report of the rollover at 12:20 a.m.
Two males, aged 15 and 17, were injured in the accident.
A spokesperson for STARS said one of the occupants of the vehicle was transported to Health Sciences Centre in Winnipeg by its air ambulance team in critical condition.
Steinbach RCMP said an investigation continues to determine if drugs or alcohol were a factor. A traffic analyst also attended to investigate the cause, including whether speed was a factor.
Police added they are also investigating the activities of the two males prior to the accident occurring.