Mahmoud Khalil, one of the most prominent leaders of US pro-Palestinian campus protests, pledged Saturday to keep campaigning after he was released from a federal detention center.

"Even if they would kill me, I would still speak for Palestine," Khalil said as he was greeted by cheering supporters at Newark airport, just outside New York City.

Khalil, a legal permanent resident in the United States who is married to a US citizen and has a US-born son, had been in custody since March facing potential deportation.

A privately run aid organisation brought in to distribute food rations in war-hit Gaza last month with US and Israeli backing said Saturday that people in the Palestinian territory "desperately need more aid".

The admission by the Gaza Humanitarian Foundation (GHF) that it has been unable to meet demand came after severe criticism from other aid groups and near-daily deadly shootings near distribution points.

Tens of thousands of pro-Palestinian protesters marched in European cities calling for an end to the war in Gaza, hours before President Donald Trump said the US military had attacked three Iranian nuclear sites Sunday.

In London, AFP journalists saw tens of thousands of protesters, who waved Palestinian flags as they marched through the British capital clad in keffiyeh scarves.

In Berlin, more than 10,000 people gathered in the centre of the city in support of Gaza, according to police figures.

Thousands marched on Saturday outside a French trade fair, calling for an end to war profiteering and Israel's offensive in Gaza in the latest demonstration to hit the event.

The long-planned protest at the Paris Air Show outside the French capital also comes as Israel's war with Iran drags on into a ninth day, with Tehran threatening to hit back in force at Israel's offensive against its arch-rival.

Gaza's civil defence agency said Israeli fire killed at least 12 people on Saturday, including eight who had gathered near aid distribution sites in the Palestinian territory suffering severe food shortages.

Civil defence spokesman Mahmud Bassal told AFP that three people were killed by gunfire from Israeli forces while waiting to collect aid in the southern Gaza Strip.

In a separate incident, Bassal said five people were killed in a central area known as the Netzarim corridor, where thousands of Palestinians have gathered daily in the hope of receiving food rations.

Israel's rescue services said Saturday that an Iranian drone had struck a residential building in the north of the country following a wave of attacks reported by the military.

"A drone strike hit a two-storey residential building in northern Israel", the Magen David Adom said in a statement, referring to an impact site in the Beit She'an valley by the northeastern border with Jordan.

President Donald Trump said Sunday that US strikes on Iran caused "monumental damage" to its nuclear sites, as Washington joined ally Israel's bombing campaign.

While Washington insists the United States is not seeking to topple the government in the Islamic republic, comments by US President Donald Trump have been more ambivalent.

With Iran vowing retaliation and the international community pushing to avert a wider conflagration in the region, here are the latest developments:

- 'Obliteration' -

Water levels at Iraq's vast Dukan Dam reservoir have plummeted as a result of dwindling rains and further damming upstream, hitting millions of inhabitants already impacted by drought with stricter water rationing.

Amid these conditions, visible cracks have emerged in the retreating shoreline of the artificial lake, which lies in northern Iraq's autonomous Kurdistan region and was created in the 1950s.

AI deepfakes, video game footage passed off as real combat, and chatbot-generated falsehoods -- such tech-enabled misinformation is distorting the Israel-Iran conflict, fueling a war of narratives across social media.

The information warfare unfolding alongside ground combat -- sparked by Israel's strikes on Iran's nuclear facilities and military leadership -- underscores a digital crisis in the age of rapidly advancing AI tools that have blurred the lines between truth and fabrication.

Mahmoud Khalil, a former Columbia University student who was one of the most visible leaders of nationwide pro-Palestinian campus protests, was released Friday from a federal detention center.

Khalil, a legal permanent resident in the United States who is married to a US citizen and has a US-born son, has been in custody since March facing potential deportation.

"This shouldn't have taken three months," Khalil, wearing a Palestinian keffiyeh scarf, told US media outside an immigration detention center in Jena, Louisiana hours after a federal judge ordered his release.