JEFFERSON COUNTY — Two Regional Transportation District buses were among 23 vehicles involved in nine different crashes Wednesday morning on Highway 285 in the Aspen Park area, according to Colorado State Patrol.

Laurie Huff with RTD said the first crash involving a bus happened at about 7 a.m. It was stopped by the side of the road because of transmission problems when multiple vehicles crashed into it. The bus driver hit his head and was taken to Swedish Medical Center for evaluation, Huff said. None of the 30 passengers were injured.

Another crash happened a short time later when a second bus stopped along the side of the road for some unknown reason. A vehicle then slid and hit that bus, Huff said. No injuries were reported in that wreck.

A third bus was able to pick up the 40 passengers from the other buses.

9NEWS Meteorologist Cory Reppenhagen was at the scene and spotted at least two vehicles that rolled over due to crashes.

Roads in the area were slick and icy to start the day. A video from 9NEWS viewer Brian Elander shows an SUV spinning in a circle while losing traction on the highway.

Jefferson County and Clear Creek County were both on accident alert due to conditions. At about 11 a.m., CSP said that all crashes in the area have been cleared.

Motorists are urged to use caution when traveling through the area.