Pro-Palestinian demonstrations held around world to mark 100 days of war

Pro-Palestinian demonstrations have been held around the world to mark 100 days since the Hamas terror attack and Israel's retaliatory war in Gaza.

Protesters in 30 countries including here in New Zealand took to the streets demanding a ceasefire.

However, the day of action came as tensions in the wider Middle East continued to rise.

Like troops en masse, marching in solidarity with the people of Palestine, around 200,000 protesters made their way through central London.

It's one of the biggest gatherings as cities around the world, including here in Auckland, mark 100 days of war.

"The world needs to stand together because what is happening is wrong. It's not against race or religion, but just human lives," one New Zealand protester told Newshub.

"Israel does need to be able to defend itself, no question about that, but there's also no question about the length to which the Israeli army is going," an overseas protester said.

In Rome, protesters reiterated calls for an end to the bloodshed, urging Israel for an immediate ceasefire.

The global action day puts more international pressure on Israel - but there were demonstrations there too.

More than 100,000 rallied in Tel Aviv with demands of their own - to release the hostages being held in Gaza by Hamas militants.

Israel's Prime Minister Benjamin Netanyahu is not deterred until Israel has achieved all of its objectives.

"The elimination of Hamas, the return of all our hostages and the guarantee that Gaza will never again pose a threat to Israel," he said.

"We will restore security, both in the south and in the north. No one will stop us - not The Hague, not the Axis of Evil, nor anyone else."

There are fears the conflict could create more unrest in the wider region after the United States carried out a fresh air strike on a Houthi rebel target in Yemen.

It triggered a mass demonstration in the Yemeni capital, showing the momentum the Houthis are gaining.

But on the streets of Palestine, the war rages on. In Rafah, a parent said goodbye to his child after they were killed by an Israeli air strike. They were one of the 10,000 children killed in Gaza - their deaths symbolised by tombstones laid out in protest on the streets of Naples.

In total, the Israeli bombardment has claimed more than 23,000 mostly-civilian casualties.

Based on data publically available, British charity Oxfam estimated the Gaza conflict to be the deadliest in the 21st century.

"Genocide is going on, killing children is going on while we are speaking right now. No action," a New Zealand protester told Newshub.

"We feel their pain, our heart goes to them," another said.

Protests unified in their condemnation - but after 100 days of death, destruction and displacement, there's still no end to this conflict in sight.