Papua New Guinea Prime Minister James Marape says the Middle East conflict was one of the discussions of the Melanesian Spearhead Group (MSG), and Pacific leaders "took note of what is happening".

The Post Courier reported Marape saying the war between Israel and Iran is based on high technology and using missiles sent from great distances.

"In the context of MSG, the leaders want peace always. And the Pacific remains friends to all, enemies to none," he said.

He said an effect on PNG would be the inflation in prices of oil and gas.

Since then, Iran has struck a US base in Qatar.

On Tuesday morning, US President Donald Trump said a ceasefire had been agreed upon between Israel and Iran, but this has not been confirmed by either nation.

Australia had stepped in to help Papua New Guinea diplomats and citizens caught in the Middle East.

Foreign Affairs Minister Justin Tkatchenko confirmed last week that a group was to be evacuated through Jordan.

There were six diplomats in lockdown at the PNG embassy in Jerusalem awaiting extraction.

Meanwhile, a repatriation flight for Australians stuck in Israel was cancelled after another barrage of Iranian missiles.

The ABC reported it was the second day repatriation plays were scrapped last minute because of rocket fire. A bus meant to take people across the border into Jordan was cancelled the previous day.

- RNZ Pacific