Falmouth Police responded to an accident near Boston Street Saturday afternoon.
Officers were notified of a roll-over crash occurring at approximately 2 p.m. on Maravista Avenue.
Police, fire and rescue arrived on scene and found one of the vehicles resting on its side; another car was also involved in the accident.
Rescuers evaluated all individuals at the scene, with one person sustaining unknown injuries; another occupant was treated on location.
The cause of the accident is under investigation by Falmouth Police.