RCMP were called out to a serious crash southeast of Calgary that claimed the life of a driver.

The crash occurred at about 6:30 a.m. on Monday at Highway 22X and Highway 797.

According to reports, a semi trailer was traveling westbound and a Ford Focus was southbound and the two vehicles hit one another.

Police say in a release that the Focus didn't stop at a stop sign at the intersection.

Dean Portz, with the RCMP Collision Reconstruction Unit, says that the care drove into the path of the truck. He says there is nothing that stands out as a reason for the crash other than failing to stop.

"These intersections are well signed, the weather is nice and clear. We get a lot of these kinds of collisions as a result of driver inattention."

The lone male occupant, aged 50, was pronounced dead at the scene.

The semi-truck driver and his passenger weren't injured, but were shaken by the incident.

Both vehicles ended up 200 metres from the intersection of the two highways.

Highway 22X remains open at this time, but traffic is restricted as RCMP work with the trucking company to clear the wreckage from the road.

The name of the deceased has not been released pending notification of his family.