Police have located an item of interest after searching a Dunedin quarry in the investigation into a teenagers alleged murder.
Amber-Rose Rush, 16, was found dead at a house on Clermiston Ave on Saturday morning.
A 30-year-old doctor appeared in the Dunedin District Court on Monday afternoon charged with her murder.
Police say the man who was known to her.
Detective Senior Sergeant Rob Hanna says an item of interest was located after a search was conducted at Blackhead Quarry on Tuesday.
"We are still wanting to identify the occupants of a dark coloured vehicle believed to be a Toyota Camry or similar which was parked in the carpark at Blackhead Quarry.
These people may be able to assist with the investigation, he says.
The vehicle is believed to be in the carpark between 11.30pm and 12.30am on Friday 2 and Saturday February 3.
Police are also interested in any sightings of a silver two-door BMW that is believed to have travelled from Dunedin to Balclutha between midnight and about 2am on Saturday February 3.