The secretary-general of the United Nations visited the crossing between the besieged Gaza Strip and Egypt, and said humanitarian aid must be allowed across as soon as possible.

Israel has vowed to wipe out the Hamas Islamist group that rules Gaza, after its gunmen burst through the barrier fence surrounding the enclave on 7 October and rampaged through Israeli towns and kibbutzim, killing 1,400 people, mainly civilians.

“You see Gaza now from a distance, you will soon see it from inside. The command will come,” Defence Minister Yoav Gallant told troops gathered at the Gaza border on Thursday.

Israel has pounded Gaza with air strikes and put the enclave’s 2.3 million people under a total siege, banning shipments even of food, fuel and medical supplies. Since 7 October at least 4,137 Palestinians have been killed and 13,000 wounded in Gaza in Israeli strikes, the Palestinian health ministry said.

The UN says more than a million have been made homeless.

They came from under the bombardment and the destruction, and they said they would be safe here, but destruction chased them.

The Orthodox Patriarchate of Jerusalem, the main Palestinian Christian denomination, said Israeli forces had struck the Church of Saint Porphyrius in Gaza City, where hundreds of Christians and Muslims had sought sanctuary.

Video from the scene showed a wounded boy being carried from rubble at night. A civil defence worker said two people on upper floors had survived; those on lower floors had been killed and their bodies were still in the rubble.

“They felt they would be safe here. They came from under the bombardment and the destruction, and they said they would be safe here, but destruction chased them,” a man cried out.

Gaza’s Hamas-run government media office said 18 Christian Palestinians had been killed. There was no immediate word from the church on the final death toll. It said targeting churches that were used as shelters for people fleeing bombing was “a war crime that cannot be ignored”.

The Israeli military said part of the church was damaged in a strike on a militant command centre and it was reviewing the incident.

 ‘Everything I dreamt of destroyed’

Israel has already told all civilians to evacuate the northern half of the Gaza Strip, which includes Gaza City. Many people have yet to leave, saying they fear losing everything and have nowhere safe to go, with southern areas also under attack.

In Zahra, a northern Gaza town, residents said their entire district of about 25 apartment buildings was razed.

They received Israeli warning messages on their phones at breakfast, followed 10 minutes later by a small drone strike that hammered the message home. After another 20 minutes, F-16 warplanes brought the buildings down in huge explosions and clouds of dust.

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“Everything I ever dreamt of and thought that I have achieved was gone. In that apartment was my dream, my memories with my children, and my wife, was the smell of safety and love,” Ali, a resident of the district, told Reuters by phone, declining to give his full name for fear of reprisals.

The UN humanitarian affairs office said more than 140,000 homes – nearly a third of all homes in Gaza – have been damaged, with nearly 13,000 destroyed.

The south of the enclave has also been regularly hit. Rescue workers were combing through the wreckage of a house in the main southern city Khan Younis looking for survivors. One carried the limp body of a child.

“We don’t want to receive aid, we want the destruction and the killing of children in their sleep to stop. We are tired,” said neighbour Joumana Khreis.

A man wept while a medic comforted him at the side of a road next to two dead bodies wrapped in white shrouds. The bodies were later held aloft by marchers who carried them through the Khan Younis streets.

Aid still held up

International attention has focused on getting aid to Gaza through the one access point not controlled by Israel, the Rafah crossing to Egypt. US President Joe Biden, who visited Israel on Wednesday, emerged with a promise from Israel to allow limited shipments from Egypt provided that the aid is monitored to prevent any from reaching Hamas.

UN secretary-general Antonio Guterres toured the checkpoint on the Egypt side and called for a meaningful number of trucks to enter Gaza every day and checks to be quick and pragmatic.

“We are actively engaging with all parties to make sure conditions for delivering aid are lifted,” he said.

Western leaders have so far mostly offered support to Israel’s campaign against Hamas, although there is mounting unease about the plight of civilians in Gaza.

Biden delivered a televised speech on Thursday calling for billions of dollars in US military aid for Israel to fight Hamas. But he also said: “We can’t ignore the humanity of innocent Palestinians who only want to live in peace and have opportunity.”

The conflict is also spreading to two other fronts – the West Bank and the northern border with Lebanon.

The defence ministry ordered residents of the largest Israeli town near the Lebanese border, Kiryat Shmona, to evacuate. Clashes at the border between Israel and Lebanon’s Hezbollah movement have been the deadliest since a full-blown war in 2006.

In the West Bank, the Palestinian health ministry said 13 people were killed including five children when Israeli troops raided and called in air strikes on the Nur Shams refugee camp near Tulkarm.

The territory, where Palestinians have limited self rule under Israeli military occupation, has seen the deadliest clashes since the second intifada uprising ended in 2005. Reuters/DM

(Reporting by Nidal al-Mughrabi in Gaza, Washington and Jerusalem Bureaus; Writing by Peter Graff; Editing by Philippa Fletcher)