Oamaru police are investigating whether two cars were racing at the time of a crash on the corner of Severn and Itchen Streets on Monday night.
Oamaru police Acting Sergeant Stuart Dowling said at about 8.15pm, the first of two vehicles made a “sudden” left turn onto Itchen St from Severn St and allegedly lost control and hit a third vehicle waiting at the intersection.
The second car ran into the back of the first vehicle which had taken a sudden turn.
Mr Dowling said the driver of the first vehicle claimed not to know the driver and occupants of the car he was allegedly racing. Three people were believed to be in each of the vehicles.
The first vehicle was written off and a female back-seat occupant had to be cut free by the Fire Service.
Anyone with information should contact the Oamaru police on 03 433 1400.