The People’s Representative for Tongatapu 10 Constituency died on 18 March 2023 in the United States where he was receiving medical assistance.
A statement released by the Chief Secretary and Secretary to Cabinet said Prime Minister Hu’akavameiliku decreed that all national flags are to be flown at half-mast as of Tuesday, 18 April in respect of the late Tu’i’onetoa.
In 2019, Tu’ionetoa became Tonga’s 17th Prime Minister.
Tu'i'onetoa is survived by his wife and children.