A 33-year-old man has been found hurt by the side of the road in Auckland's North Shore on Monday night.
Police say a passer-by heard somebody yell out before finding the man down a grass embankment with moderate injuries to his head, hands and knees.
He was found near the intersection of Park Rd and Glenfield Rd between 5:30pm and 6pm on Monday.
The man can't remember how he got hurt, but police say it's possible he had been skateboarding just before the crash.
A white van was seen at the time of the incident and police would like the driver to contact them.
Any other witnesses who may have seen what happened are asked to contact Sergeant Caroline Anderson on 09 488 6200, or anonymously through Crimestoppers on 0800 555 111.