Police investigating the assault of a woman found bound and gagged on the side of the road are appealing for sightings of an older-style blue van.
Three people have been arrested in relation to the Dome Valley case.
A woman was found with serious head injuries last Monday and remains in a serious but stable condition in Auckland Hospital.
Orewa Police said today they were now seeking sightings from the public of an "older-style blue van" that was parked on Waiwhiu Conical Peak Road, in the Dome Valley between 8pm and 11pm on Sunday, May 8 (Mother's Day).
They were also seeking anyone who was stopped or parked at the lookout at the top of Dome Valley, near the café, during the same time period.