A man who was believed to be intoxicated died in police custody in Rotorua on Saturday afternoon.
Police were called to assist ambulance staff with the 52-year-old man in Rotorua CBD about 3pm, police said.
He was transported to Rotorua Police Station and another ambulance was called after he was assessed by a police doctor.
His condition deteriorated and police staff conducted CPR until the ambulance arrived about 4pm.
A post-mortem examination will take place today to establish the man's cause of death.