A prisoner has been missing from Otago Corrections Facility since 4.15pm today.
Stephen Uriah Maddren is described as a male caucasian, 25 years of age, 171 cm tall with mullet-type brown or black shoulder length hair and no teeth.
He was last seen wearing green track pants and a green top.
Police said Maddren should not be approached. Anyone who sees him should phone police on 111.