A driver was left trapped between a lorry and a bus in a nine-vehicle pile up which brought traffic to a standstill.
The crash on the A174 eastbound towards Redcar, Cleveland happened at around 7.10am.
A Ford Focus was trapped between an Arriva bus, which was not carrying any passengers, and a HGV.
Fire crews worked to free the male driver of the Focus. He was taken to James Cook University Hospital in Middlesbrough along with the bus driver.
Police said their injuries are not thought to be serious.
Drivers are advised to avoid the area while the queuing traffic clears.