
Park Tce in Lyttelton. Photo: Google
Emergency services were called to the crash on Park Tce about 10.15am on Monday.
A St John ambulance spokesman said one person is in a critical condition, while another was moderately injured and two others received minor injuries.
The person in a critical condition has been taken to Christchurch Hospital, he said.
A Fire and Emergency NZ spokesman said a person had to be extricated from one of the vehicles after being trapped.
Fire crews from the Lyttelton and Christchurch city stations attended.