A fatal incident involving a bicyclist temporarily closed westbound Colorado Highway 82 near Carbondale on Sunday, as Colorado State Patrol continues to investigate the circumstances surrounding the death.

Emergency alerts initially reported the closure at mile marker 12 near the Highway 133 intersection around 10:20 a.m. Sunday. Garfield County Sheriff’s Office Public Information Officer Walter Stowe said the bicyclist was discovered down an embankment along the westbound shoulder, but the incident may have occurred several hours earlier.

Colorado State Patrol initially categorized the case as a hit-and-run. However, the official cause of death remains undetermined as of Sunday afternoon.

According to a State Patrol news release, the bicyclist is believed to have been traveling from Carbondale on Highway 133 before continuing westbound on Highway 82 late Friday night, June 13. Authorities are asking for the public’s help in identifying any witnesses who may have seen a male bicyclist in the area between 9:30 and 11 p.m. that night.

The rider was wearing dark clothing and was on a red and white bicycle.

Anyone with information is asked to call dispatch at 970-249-4392 and reference case number VC250191. Callers should be prepared to leave contact information for follow-up.

Both directions of Highway 82 were fully reopened as of 5:45 p.m. on Sunday.

The Post Independent will continue to update this story.