O.P.P. are investigating a fatal multi-vehicle crash on Highway 17 east of Renfrew.
The six-vehicle crash happened around 4:30 a.m. Friday on Highway 17 at Calabogie Road.
A 39-year-old woman from Arnprior was pronounced dead at the scene.
Renfrew County Paramedics say they treated six patients on scene. A 38-year-old man and 34-year-old woman - both of Renfrew - were taken to hospital with non-life threatening injuries.
OPP closed the highway between Calabogie Road and White Lake Road in Arnprior.
Police reported heavy fog in the area at the time of the crash.