The search and rescue operation is under way after the discovery of the missing women's vehicle at Hawks Bay.
The twenty-two-year-old autumn science, which lives in Poronghava, was reported missing at 10.30. She had last contact with her family on Wednesday morning.
A police statement said a search and rescue was ongoing in the Wilder Rd area where the Sciascia car was found.
The helicopter was also deployed as part of efforts to locate the Hawk Bay site.
It is described as a secondary building, with fair skin and long dark hair.
• Anyone who has information about where Sciascia is located should be contacted at Waipukura Police Station at 06 873 0500.