The leading party in the Papua New Guinea coalition government, the PNG Party, has strengthened its numbers to 20 MPs after it was joined by four members of the People's Action Party.
Those joining the government are former opposition MPs Gabriel Kapris, Tony Aimo, John Kekeno and Ben Semri.
The Post Courier quotes Mr Kapris as saying they're joining the PNG Party to help bring stability to the government.
He says the decision wasn't taken for riches and power but in the interest of the people of PNG where the People's Action Party had grown roots.
The deputy prime minister, Belden Namah, says the decision by the People's Action Party is the only way for MPs to put aside their political differences and force a partnership to stabilise government.
The PNG Party founder, Sir Mekere Morauta, says the amalgamation gives birth to a new political power, reshaping the country's evolving political landscape.