Two young men who died after their car was found in a swollen river may have been undiscovered for hours before the alarm was raised.
Emergency services were alerted just after 8am on Friday after a member of the public spotted the vehicle.
The convertible Peugeot 306 was travelling towards North Molton on the road which leads from the A361 at South Molton when it left the carriageway and plunged 15 feet into the fast flowing, swollen River Mole.
The driver, a 25-year-old man from Brixham, was taken to hospital but died a short time later. The passenger in the car, a 24-year-old man from South Molton, was pronounced dead at the scene.
Police have revealed that they are seeking witnesses who may have seen the distinctive blue car in the area the night before the men were found.
A spokesman for the force said the force's Serious Collisions Investigation Unit was appealing for witnesses who "may have seen the Peugeot travelling from the Exmoor direction toward North Molton or South Molton sometime during the late evening of Thursday or early hours of Friday morning, to contact police."