KALISPELL, Mont. -

A four-car crash in Kalispell sent one person to the hospital on Monday afternoon. Authorities closed a lane of traffic on Highway 2 East for roughly 20 minutes

Firefighters say the driver in the back failed to stop, and crashed into the car in front of them. That sent the other cars forward.

The cause of the accident is still under investigation. The condition of the patient is unknown at this time.