With international pressure mounting on Israel over the deepening hunger crisis in Gaza, Macron said action was needed "in the next few hours and days". 

He also asserted recognition of a Palestinian state with conditions was "not only a moral duty, but a political necessity".

If there was no response in line with the humanitarian situation in Gaza "in the coming hours and days... we will have to harden our collective position," Macron said on a visit to Singapore.

This meant dropping an assumption that human rights were being respected "and apply sanctions", the French leader said hours before addressing a defence summit in the city-state.

Macron is on a diplomatic tour in Southeast Asia which also saw him visit Vietnam and Indonesia earlier this week.

While in Jakarta, Macron and President Prabowo Subianto issued a joint statement condemning Israeli plans to take control of Gaza and any moves to "forcibly remove the Palestinian population from their homeland".

Paris hoped to "trigger a movement of recognition for a Palestinian state under certain conditions", including the demilitarisation of Hamas and recognition of Israel's right to exist and protect itself, Macron said in Jakarta.

President Prabowo said Indonesia is willing to recognise and open diplomatic relations with Israel if an independent Palestinian state is recognised by Tel Aviv.

Standing alongside visiting Macron, Prabowo said Israel's security needs to be guaranteed, and that France would also continue to support steps towards independence for a Palestinian state. 

The humanitarian situation in Gaza remained dire despite aid beginning to trickle back into the territory after a more than two-month Israeli blockade.

Food security experts said starvation was looming for one in five people.

Israel has also intensified its military offensive in what it said was a renewed push to destroy Hamas, whose October 7, 2023 attack triggered the war.