Waikato police have "serious concerns" for the safety of a Hamilton teenager who hasn't been seen for three days.
Noelle Martin, who turned 18 on Christmas Day, was last seen about 5pm on Thursday at a Fairfield property.
Police say she hasn't contacted family or friends since and it was "very out of character for her".
It is unknown what she was last wearing.
Her cellphone last polled on the 19th of January in Manukau, Auckland.