SUVA, Jan. 9 (Xinhua) -- Tonga's Prime Minister Akilisi Pohiva is still in a capital hospital for sudden illness on Tuesday.

According to Matangi, Tonga's leading news website on Tuesday, the 76-year-old prime minister remains in the Intensive Care Unit (ICU) of Vaiola Hospital, a main hospital on the outskirts of Tonga's capital city of Nuku'Alofa.

There is no statement from the Prime Minister's Office about Pohiva's condition, but the hospital reportedly has confirmed that the prime minister has been in the hospital since last Friday.

He was transferred to the ICU after his condition worsened on Sunday. Currently, he is in a stable condition.

Tonga's King Tupou VI has in recent days appointed Akilisi Pohiva as the South Pacific Island state's prime minister after his Democratic Party won 14 of the 17 People's Representatives seats in the November election last year.

Pohiva, who was first elected MP in 1987 and became Tonga's prime minister in 2014, was removed from prime ministerial post by King Tupou VI after the king dissolved the parliament in August last year. But Pohiva's Democratic Party enjoyed a resounding victory in the November election last year.