The disappearance of a defibrillator on the Mauao base track has been described as gut-wrenching by the business that donated the lifesaving machine.
Window and door repair company Exceed donated two defibrillators to the community in August 2020, and they were placed along the base track and at the top of Mauao.
Exceed general manager Tony Burnette said the company on Wednesday was told by a person walking along the base track that the defibrillator had disappeared.
After the call, a staff member of The Heart Box - a charity started by Exceed - confirmed it was missing.
Burnette did not know exactly when it disappeared but said St John had no record of it being used in recent weeks. It has been used six times since being donated.