Tonga Police say the cause of death of a 61-year-old man in Havelu on Sunday at about 11am is still unknown.
A post-mortem was expected this week while the body of the deceased was in Vaiola Hospital.
Chief Police Superintendent Tevita Fifita said they received a report that a man died and he was taken to hospital.
The man was originally from Hihifo, Haʻapai.