The first half was an intense battle, with neither side able to break through.
However, Tonga did put the first points on the scoreboard with a penalty after 40 minutes. The first try came shortly after as Tonga began to take control.
Italy failed to find a way back into the match early in the second half, but they defended stoutly, and when they did attack, Tonga showed similar strength in defence.
Daniel Foster then powered his way through the Italian defence for 12-0.
Despite some good Italian pressure, they were unable to find the finishing touch to go with their hard work.
Tonga continued to stand resolute as the second half drew to a close and added to the scoreline with a late try.