Officers are appealing for anyone travelling on the road from the early hours of Sunday morning to get in contact.
Sergeant Calum MacAulay said: “Our inquiries into the circumstances of this crash are at an early stage, and our thoughts remain with the families of these two young men.
“I would ask anyone travelling on the road from the early hours of Sunday morning until the car was reported to police to contact officers.
“If there are any motorists with dashcam footage that were in the area around the time of the incident, please get in touch with police.”
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Two men found dead following one-car crash on A836 near Lairg
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