Interstate 25 northbound reopened near Castle Rock after a three-vehicle crash caused a diesel spill and sent three people to the hospital.

The crash was between Castle Rock Parkway and Happy Canyon Road, South Metro Fire Rescue officials said in a post on X.

The northbound lanes were entirely closed after the crash, but all lanes of traffic reopened by 12:29 p.m., according to the Colorado State Patrol.

Two drivers sustained serious injuries, South Metro Fire officials said.

CSP said in a post on X that three vehicles were involved in the crash; all three drivers were taken to the hospital.

South Metro Fire’s hazardous material team cleaned up the diesel fuel by 12:29 p.m, and the Colorado State Patrol is investigating the crash.

A video South Metro Fire posted to X shows at least one car and one semitrailer involved in the crash.

Colorado Department of Transportation cameras show traffic backed up for several miles.