Papua New Guinea has an official population of around 10 million people. (EPA Images pic)SYDNEY: Papua New Guinea is considering ways to limit families to just three children in a bid to stop its booming population from overwhelming public services, Prime Minister James Marape said.

China for decades enforced a "one child" policy to curb population growth before ending it in 2016, while nations such as Vietnam and Iran have experimented with measures to limit families to two kids.

Official figures rank Papua New Guinea among the fastest growing countries in the world, although census data is notoriously unreliable in the South Pacific nation.

Marape said limiting families to three children would "curtail uncontrolled demographic expansion".