Ontario Provincial Police say a two-car crash on Highway 511 has claimed the life of a second driver.
Police say 35-year-old Ronald Cooper died of his injuries in hospital.
The fatal crash happened Sunday night at Highway 511 and Drummond Concession 7.
The driver of a pickup truck, 47-year-old Christopher Curran, was pronounced dead at the scene.
Police say Cooper's Mazda hatchback was travelling west on Drummond Concession 7 when it struck Curran's truck.
Both men were residents of Lanark County.
An investigation is ongoing.