Cochrane RCMP are investigating a single-vehicle collision in Rocky View County that left two dead and one in critical condition Sunday morning.

The rollover was reported to RCMP by EMS at 3:04 a.m. on Highway 22 and Township Road 284, about 50 kilometres northwest of Calgary.

A 28-year-old man from St. Albert and a 19-year-old man from Red Deer were declared dead at the scene. A 31-year-old was taken to hospital in critical condition by STARS air ambulance around 3:15 a.m.

511 Alberta said the highway was closed at 3:27 a.m., before it re-opened at 5:36 a.m.

The RCMP collision reconstructionist was at the scene. The incident is still under investigation.