Police are trying to locate Dr Luse Tamani, who went missing today following an argument with her mother.
Police say Dr Tamani is believed to be driving a maroon Toyota Rush with registration number KY 573.
They confirm she is one of six health workers who went missing in the Lau waters in July this year and were rescued after spending 36 hours at sea.
Police say Dr Tamani is still undergoing medical treatment.
Anyone with information on her whereabouts or who has seen the vehicle is urged to call Crime Stoppers on 919 or the Police call centre on 1681.