Hamas has always had a reputation for having some of the best underground tunnels of any militia.
In a media tour arranged by the Israel Defence Forces (IDF) into Gaza, one of the most impressive tunnels the Israeli military has discovered was on full display.
The entrance was just inside Gaza, only a few hundred metres from the Erez border crossing with Israel, where there was a gaping hole in the sand.
Image: IDF troops at the entrance to the tunnel they say was built by Hamas
Inside was a heavily fortified tunnel, and without doubt the largest tunnel I have ever seen in Gaza.
There was plenty of room inside the reinforced concrete tunnel. A steel pipe ran along the top of it, and electricity cables dangled inside.
The IDF said the tunnel ran for more than two miles into central Gaza City.
It’s no secret Hamas has been building its tunnel infrastructure for years. It uses them to transport fighters, not only belonging to Hamas but also other militant groups like Islamic Jihad, from one end of the strip to the other.
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Tunnels are also used to move and store weapons, launch attacks against Israel and, in this war, to hold hostages.
With every war with Israel, tunnels are destroyed and rebuilt again. But the extent of the labyrinth beneath Gaza is difficult to fathom, it’s believed it may stretch 150-200 miles.
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There were no lights inside. The IDF had placed a metal grid on the floor to cover holes in the ground that dropped by up to 15 metres, down to other parts of the subterranean complex.
Image: Metal grids cover holes that drop by up to 15 metres, down to other parts of the subterranean complex
Image: Cables dangled from the roof of the tunnel
One IDF spokesman told me the degree of sophistication and engineering used to build and maintain these tunnels was “impressive”.
In the distance you could hear small arms fire and occasional explosions. Smoke hung over the northeastern tip of Gaza, and you could see large blocks of apartments, reduced to rubble.
The land inside Gaza next to the Israel border, which is known as the buffer zone, was churned up by Israeli tanks and bulldozers.
The IDF’s automatic machine gun towers – which surround the Gaza strip and are positioned along the wall – were clearly heavily damaged in the 7 October attack by Hamas.
The covered walkway from the Erez crossing into Gaza was destroyed, along with Israeli border offices adjacent to the crossing.
Hamas has long promoted its network of tunnels on its official television news station, but I can’t recall them ever allowing journalists to visit those it built for fighting.
Image: Block after block of flats in northern Gaza reduced to rubble
Israel insists its war must continue until the tunnels are destroyed and Hamas is defeated. Its media tour was aimed at showing journalists what they were dealing with beneath Gaza.
The problem is the tunnels are embedded into the Gaza strip. This tiny strip of land is among the most densely populated places on earth, so of course the tunnels run deep below homes, schools and neighbourhoods.
Hamas has been perfecting its tunnel-building over the last 20 years. Members of the group and smuggling barons constructed them under the southern Egyptian border after Israel imposed its siege on Gaza in 2006.
I have visited the underground networks at the bottom of Gaza over the years, and they were crude in comparison to the one we were shown in the north.
In the south, the tunnels were carved out of sand, often only high enough to crawl through, and the men who dug them were often killed when ceilings collapsed.
Image: Entrance to the tunnel
Image: IDF soldiers took media on a tour of one tunnel
While this war continues, Hamas’s fighters are still holed up inside these subterranean passages, as are Israeli hostages.
It’s left the IDF with a dilemma: how to destroy the network without killing hostages in the process.
As for Gaza’s civilian infrastructure above ground, the United Nations says 45% of the territory’s housing stock has been destroyed.
Israel says it wants to protect civilians during this war, but Gaza’s Health officials say that more than 21,000 Palestinians have been killed so far.
The tunnels have given Hamas a tremendous military strategic advantage in this war – Israel wants them destroyed once and for all.
The family of a father who disappeared with his three children nearly four years ago in New Zealand have broken their silence to appeal for him to return home.
In December 2021, Tom Phillips vanished into the wilderness with his two daughters and son – but his family have said they still remain hopeful “today will be the day you all come home”.
Phillips, along with Jayda, now aged 12, Maverick, 10, and Ember, nine, were last believed to have been seen in a “credible sighting” last October hiking through a bush area near Marokopa on the country’s North Island.
For the first time, his family have directly appealed to Phillips in the hope that “just maybe, he’s going to see this” and “that we are here for him”.
In an interview with New Zealand journalist Paddy Gower, his sister Rozzi Phillips said she missed being part of her brother’s life, adding “I really want to see you” and “you’re very special to me”.
She also read out a handwritten message from Phillips’ mother, Julia, which came from her “heart, just to her son”.
“Tom, I feel really sad that you thought you had to do this, not considering how much we love you and could support you,” she said.
“It hurts every time I see photos of the children and of you and see some of your stuff that is still here, thinking what could have been if you’d not gone away.”
Israel will call up 60,000 reservists as it prepares to launch an expanded military operation in Gaza City.
The military said the country’s defence minister Israel Katz has approved plans to begin a new phase of operations in some of the most densely populated areas of the Gaza Strip.
Israeli forces will operate in areas of Gaza City where they have not yet operated and where it believes Hamas is still active, a military official said.
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1:05
Israel must have ‘security control’ to end Gaza war, Netanyahu says
The city is the main military and governing stronghold of Hamas and Israeli troops will target the group’s vast underground network, the official added.
Although Israel has targeted and killed much of Hamas’ senior leadership, parts of the group are actively regrouping and carrying out attacks, including launching rockets towards Israel, the official said.
It remains unclear when the operation will begin, but it could be a matter of days.
Image: Palestinians at the site of a house struck by Israel in Gaza City. Pic: Reuters
The official said 60,000 reservists will be called up in the coming month and the service of an additional 20,000 reservists currently serving will be lengthened.
Israeli Prime Minister Benjamin Netanyahu has said the objectives of the war are to secure the release of the remaining hostages and destroy Hamas.
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Gaza hospitals ‘overwhelmed with malnutrition cases’
International criticism of Israel increased after the planned offensive was announced earlier this month amid fears of another mass displacement of Palestinians.
The families of the hostages and former army and intelligence chiefs oppose an expanded operation in Gaza City, with most of the families of hostages wanting an immediate ceasefire.
They worry an expanded assault could threaten prospects of bringing the 50 remaining hostages home. Israel believes 20 of those are still alive.
Image: Parachutes drop aid supplies in Gaza. Pic: AP
Image: Palestinians rush to collect airdropped humanitarian aid packages. Pic: AP
The war began when Hamas-led militants attacked Israel on 7 October 2023, killing some 1,200 people and abducting 251.
Many of the hostages have been released in ceasefires and other deals, with Hamas saying it will only free the remainder in exchange of a lasting ceasefire and Israeli withdrawal.
More than 62,000 people have been killed during Israel’s 22-month counteroffensive, according to Gaza’s Hamas-run health ministry, which does not differentiate between civilians and combatants in its count, but says women and children make up around half of those killed.
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Earlier this week, the ministry said 154 adults had died of malnutrition-related causes since the ministry began counting such deaths in late June, and 112 children have died of malnutrition-related causes since the war began.
Thousands have fled parts of Gaza City in recent days amid airstrikes and advancing Israeli troops, new satellite imagery shows.
Israel’s advance comes as it prepares to mount a full-scale invasion of the city, where the UN says around one million Palestinians are sheltering.
Satellite imagery shows that entire tent camps in southeast Gaza City were emptied between 9 and 17 August as families fled the renewed attacks.
The video below shows the moment of an airstrike in southeastern Gaza City on 13 August. Sky News geolocated the footage to a building less than 200 metres from a major tent camp.
Another video, taken on 15 August, shows a strike on a building right next to the camp.
By the following day, almost all the camp’s residents had fled, along with people sheltering at 30 other locations in the area.
Fresh vehicle tracks in the area indicate extensive troop movements on the ground.
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The satellite image below, taken on 17 August, shows at least nine military vehicles in the streets surrounding one former tent camp.
Sky News counted 58 military vehicles in the area on 17 August, including 17 bulldozers.
The image below shows four IDF vehicles, including a bulldozer, parked next to the remains of one tent camp. Several nearby buildings had been levelled in the days beforehand.
Between 9 and 17 August, at least 132 buildings were destroyed in less than one square kilometre of the city.
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It’s unclear how much of the destruction was carried out by IDF bulldozers and how much was a result of airstrikes.
On Monday, eyewitnesses reported that Israeli tanks had made further advances into eastern Gaza City.
The advances came as Hamas said it had approved a ceasefire deal presented by mediators Egypt and Qatar. Israel has yet to respond to the proposal.
Earlier this month, Israeli Prime Minister Benjamin Netanyahu instructed his country’s military to prepare for a full-scale invasion and occupation of the city in order to “free Gaza from Hamas”.
The UN has said that the invasion risks “catastrophic consequences” for the estimated one million Palestinians sheltering in the city, while UK Prime Minister Sir Keir Starmer said the plan would “only bring more bloodshed”.
The Data and Forensics team is a multi-skilled unit dedicated to providing transparent journalism from Sky News. We gather, analyse and visualise data to tell data-driven stories. We combine traditional reporting skills with advanced analysis of satellite images, social media and other open source information. Through multimedia storytelling we aim to better explain the world while also showing how our journalism is done.