Derbyshire police are appealing for dashcam footage after a serious collision in Derby.
The incident occurred at 3.50am on 9 October in Sir Frank Whittle Road, Derby, close to the BMW garage, and involved a head-on collision between two vehicles.
A black Mercedes E220 was travelling from Little Eaton towards the Pentagon island, while a silver Ford Tourneo was travelling in the opposite direction.
Five people, the two drivers and three passengers, were taken to hospital with significant injuries.
The two passengers of the Ford, a man and a woman both in their 70s, suffered serious injuries that have been described as potentially life-threatening.
No arrests had been made at the time of the appeal, and enquiries into the circumstances of the incident were ongoing.
Officers are keen to speak to anyone who may have been in the area at the time and has dashcam footage of either vehicle prior to the collision.
Anyone with information that could help the investigation is asked to contact Derbyshire police using the methods below, quoting reference 26*607068:
Information can also be provided anonymously to the independent charity Crimestoppers on 0800 555 111, or by visiting the Crimestoppers website.