Dunedin police are searching a pond as they continue their investigation into the death of teen Amber-Rose Rush.
After being seen prodding into a pond at Blackhead Quarry with sticks on Tuesday, police confirmed the area is part of the inquiry.
"We would like to hear from anyone who may have been in the Blackhead Quarry or beach area between 11.30pm on Friday, February 2, and 12.30am on February 3," Detective Senior Sergeant Rob Hanna says.
In particular, police would like to speak to the occupants of a black Toyota Camry that was in the car park near the pond around this time, and may have witnessed something, he said.
Miss Rush, 16, was found at a house in Clermiston Avenue, in the suburb of Corstorphine, on Saturday.
A 30-year-old man was remanded in custody after appearing in Dunedin District Court on Monday, charged with her murder.
The man was granted interim name suppression and will next appear in the High Court at Dunedin on February 20.