Police are appealing for drivers who used a Southport car park to study dashcam footage in the search for missing Adam Seaton.
The 20-year-old is believed to have gone missing from his home address on Thursday 9 August. He is described as being white, 6ft 2in tall and of a slim build with brown hair, pale and brown eyes.
He was last seen wearing a burgundy tracksuit top with 'France' embossed on the arm, black and white tee, jeans and burgundy Puma trainers.
Adam is known to frequent the Churchtown area of Southport.
Merseyside Police Inspector Allan Pennington said:
- Anyone who has seen Adam or knows of his whereabouts is asked to direct message @MerPolCC, call 101 or contact Missing People on 116 000.