A 53-year-old man has gone missing in Tongariro National Park.
A police communications spokesman said emergency services were alerted at 5.30pm yesterday.
Police and Land Search and Rescue members from the central North Island continued the search on Mount Tongariro this morning.
Police say four men set out at 8am yesterday to hike over the Tongariro Alpine Crossing from Ketetahi to Mangatepopo.