A 34-year-old man reported he was kidnapped and robbed of his vehicle at Haleiwa Beach Park over the weekend.
The man had been reported missing by friends on Saturday but turned up and reported the incident Monday, police said.
The man said was held against his will and robbed of his vehicle and possibly other belongings by two men, one of them a 24-year-old acquaintance, police said.
All three men are believed to be homeless.
No suspects have been arrested.