A person in their 60s broke a window and escaped from an Auckland isolation hotel last night and knocked on residents' doors near the facility during the middle of the night.

Air Commodore Darryn Webb, Head of Managed Isolation and Quarantine, said police are investigating after the person left the Waipuna Hotel and Conference Centre in Mt Wellington late last night.

Webb said the individual had allegedly knocked on three residents' doors while outside the facility.

"The first property did not answer. The second property called 111. At the third property the individual apparently spoke to a couple."

The escapee was last seen at the facility at around 11pm.

They were picked up by police at about 12.15am and immediately returned to the facility where they were put under guard, Webb said.

The individual is being offered health and welfare support.

Webb said the individual tested negative for their day-3 test, after arriving in New Zealand on 4 July. They are symptom-free.

The Covid-19 health risk has been assessed as very low.

The individual is now under guard in the facility.

Public Health advise the Covid-19 health risk from the fourth escapee has been assessed as very low.

Investigations at this point indicate there were no close contacts outside the facility, Webb said.

He said standard Covid-19 procedures are being followed for police and staff who were in contact with the individual.

It comes after a man fled a Hamilton isolation hotel to visit a liquor store on Thursday. He was arrested after he allegedly cut through fence ties to break out of a managed isolation.

He allegedly absconded from the Distinction Hotel and went to a nearby liquor store, picking beer and wine before leaving.