The present government of Tonga is to remain in a caretaker role until the elections.
King Tupou VI dissolved the country's parliament on Thursday and called for elections a year early in an effective vote of no confidence in the prime minister 'Akilisi Pohiva.
Tonga's government said the country would continue to function as normal.
It said Pohiva's government was to continue in an interim role until the elections, set down for November 16.
His cabinet met at the weekend, before a brief statement was read on the country's public radio.
It provided no reaction to the decision, except to say that the administration of government services would continue.
Source: RadioNZ