Perth County OPP say one person is dead following an early morning collision outside of Molesworth.
The crash occurred on Highway 86 near Perth Road 178 around 6:30 this morning.
Two more people were taken to hospital, one was flown by air ambulance with serious injuries.
Investigators from OPP and West Region Traffic Incident Management and Enforcement Team are trying to determine the cause of the crash.
The section of Highway 86 is closed for the investigation.