A police officer was hit Friday morning on westbound Interstate 70 at Peoria.
Denver police said the officer had minor injuries. The driver accused of hitting the officer had serious injuries.
Investigators told Denver7 that the fire department was initially called out to handle a car fire.
While putting out the fire, another driver on I-70 crashed into the police officer's car.
Both the police officer, and the driver accused of causing the crash, were taken to the hospital.
Westbound I-70 reopened around 7 a.m.