Heraldo de Madrid - Thousands flee as Israel tightens 'stranglehold' around Gaza City

People walked south from Gaza City, many with nothing but the clothes they wore, while combat raged over a month after the Hamas attacks that killed 1,400 in Israel, sparking the deadliest ever war in Gaza.

According to the Hamas-run health ministry in the besieged territory, the Israeli military campaign has killed more than 10,500 people, many of them children.

The pace of Palestinian civilians fleeing south from northern Gaza has accelerated as Israel's air and ground campaign has intensified, according to UN observers.

About 15,000 people fled on Tuesday, compared to 5,000 on Monday and 2,000 on Sunday, the UN Office for the Coordination of Humanitarian Affairs (OCHA) said, as another surge was underway on Wednesday.

"It was so scary," Ola al-Ghul, among the masses of Gazan civilians displaced in the month-old war between Israel and Hamas, said Tuesday.

"We held our hands up and we kept walking. There were so many of us, we were holding white flags," she told AFP.

Israel has set an aim of destroying Hamas and said its ground forces were advancing in pursuit of the militants who have a deep network of tunnels and underground bases.

"(Israeli troops) are tightening the stranglehold around the city of Gaza," Defence Minister Yoav Gallant said late Tuesday.

- Qatar mediating hostage negotiations -

People waving white flags have been fleeing the fighting, while the steadily mounting toll has meant vehicles from donkey-drawn carts to bulldozers have been pressed into transporting the dead.

International concern over the fate of Gaza's civilians, most of whom cannot flee the sealed off territory, has prompted calls for a ceasefire.

Prime Minister Benjamin Netanyahu has said there will be no fuel delivered to Gaza and no ceasefire with Hamas unless the more than 240 hostages seized by Palestinian militants are freed.

Qatar is mediating negotiations between Israel and Hamas for the potential release of 10-15 hostages held in Gaza in exchange for a short ceasefire, a source briefed on the talks told AFP.

Doha has been engaged in intense diplomacy to secure the release of those held by Hamas, negotiating the handover of four hostages -- two Israelis and two Americans -- in recent weeks.

G7 foreign ministers said that they supported "humanitarian pauses and corridors" in the Israel-Hamas war but stopped short of calling for a ceasefire.

As fighting intensifies in Gaza, families of Israelis taken hostage by Hamas have been pushing on various fronts for help to bring their loved ones home.

"Every day is like eternity to me and I can't wait any longer," Doris Liber, whose 26-year-old son Guy Iluz was shot and taken hostage at a music festival, told reporters in Washington on Tuesday.

Yonatan Lulu Shamriz, who lived on the Kfar Aza kibbutz on the Gaza border, from which his brother Alon was kidnapped, said: "This is a call for action... this is a wake-up call for all of you here, all of America, all of Europe."

- 'Death and suffering' -

Military analysts warned of weeks of gruelling house-to-house fighting ahead in Gaza, with around 30 Israeli soldiers already killed in the offensive.

The operation is hugely complicated for Israel because of the hostages, including very young children and frail elderly people, who are believed to be held inside a vast tunnel network.

In densely packed Gaza -- where more than 1.5 million people have fled their homes in a desperate search for safety -- the suffering is immense.

The World Health Organization said an average of 160 children are killed every day in Gaza by the war.

"The level of death and suffering is hard to fathom," WHO spokesman Christian Lindmeier said.

Hamas's media office said on Telegram that several cemeteries in Gaza had "no more space for burials", while the UN Office for the Coordination of Humanitarian Affairs (OCHA)said most of the territory's sewage pumping stations were shut.

Israel accuses Hamas of building military tunnels underneath hospitals, schools and mosques -- charges the militant group denies.

OCHA says Israel has ordered all 13 hospitals still operational in northern Gaza to evacuate patients.

- US against re-occupation -

Netanyahu has said Israel will assume "overall security" in Gaza after the war ends, while Ron Dermer, Israel's minister of strategic affairs, said the prime minister was not referring to any future reoccupation of the territory.

Israel withdrew its troops from the territory, which it captured in the 1967 Six-Day War, in 2005.

"After Hamas is removed from power, after we dismantle this infrastructure, Israel is going to have to retain overriding security responsibility indefinitely," Dermer told MSNBC television.

Key ally Washington said it opposed a long-term occupation of Gaza.

Speaking to reporters after G7 foreign ministers held talks in Japan, US Secretary of State Antony Blinken listed what he said were "key elements" in order to create "durable peace and security."

"The United States believes key elements should include: no forcible displacement of Palestinians from Gaza, not now, not after the war; No use of Gaza as a platform for terrorism or other violent attacks; No reoccupation of Gaza after the conflict ends," he said.

In the occupied West Bank on Sunday, Blinken suggested the Palestinian Authority under president Mahmud Abbas should retake control of Gaza.

The PA exercises limited autonomy in only parts of the West Bank, and Abbas said it could only potentially return to power in Gaza if a "comprehensive political solution" is found for the Israeli-Palestinian conflict.

"All over Gaza, helpless people are losing their family members, homes, and their own lives, while world leaders fail to take meaningful action," medical charity Doctors Without Borders (MSF) said.

Israel has hammered Gaza with more than 12,000 air and artillery strikes and sent in ground forces that have effectively cut it in half.

It has air-dropped leaflets and sent texts ordering civilians in northern Gaza to flee south, but a US official said Saturday at least 350,000 civilians remained in the worst-hit areas.

burs/jm

A.Cano--HdM