One man has died after a single-car crash that snarled weekend traffic on Interstate 25 in Greenland on Saturday.

According to Colorado State Patrol troopers, the victim's car rolled over just before 4 p.m. on I-25 at milemarker 168.

The southbound lanes were closed for nearly an hour as a medical helicopter landed on the road. The driver was pronounced dead sometime after this.

Greenland is located between Castle Rock and Colorado Springs.

It's unclear what led up to the crash, and the man's name has not been released.