With thousands feared dead, Sky News looks at what could have caused the devastating flood that wiped out a quarter of the eastern city of Derna.
Satellite images show the Wadi Derna river, which runs from the mountains through the city and into the sea, has been dry for most of the year, though it floods semi-regularly when it rains.
But on Sunday night, Storm Daniel pounded the coast and residents of Derna reported hearing loud explosions before they realised dams outside the city had collapsed, unleashing flash floods down Wadi Derna that eventually crashed into the city.
Some 414mm of rain fell on the nearby town of Bayda, according to a local weather organisation, which the Sky News weather team described as a “huge amount of rainfall” that likely quickly ran off rather than soaked into the hard dry ground.
The first dam is about 12km upstream from the city where two river valleys converge, and footage has shown it has been completely destroyed.
After breaching the first dam, the floodwater would have continued downstream along the canyon towards the second, which sits on the southern edge of the city.
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Image: Pic: AP
Image: Debris was left strewn throughout the city
Downstream of the second dam, a wide torrent of water cascaded through the city centre, smashing into buildings on either side.
Multi-storey apartment blocks that were well back from the river had their facades ripped away and concrete floors had collapsed, while cars lifted by the flood were left stacked on top of each other.
Image: Cars lifted by floodwaters ended up piled on top of each other
Researcher warned repeated flooding threatened city
Libya has been contorted by years of war and lack of a central government after autocratic leader Muammar Gaddafi was toppled in a coup in 2011, which has left it with crumbling infrastructure that was vulnerable to intense rains.
In a research paper published last year, hydrologist Abdelwanees A R Ashoor of Libya’s Omar al Mukhtar University warned repeated flooding of the seasonal riverbed, or wadi, was a threat to Derna, citing five floods since 1942.
His paper called for immediate steps to ensure regular maintenance of the dams and added: “If a huge flood happens the result will be catastrophic for the people of the wadi and the city.”
Image: Floodwaters left swathes of mud and wreckage behind
The floods are the most fatal environmental disaster in Libya’s modern history and also hit other areas, including the town of Bayda, where around 50 people were reported dead.
Hundreds of families were also displaced and took shelter in schools and other government buildings in Benghazi and elsewhere in eastern Libya.
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.
Benjamin Netanyahu’s plan for Israel to take full military control of the Gaza Strip has been condemned, amid fears a reoccupation could put the lives of Palestinians and the remaining Israeli hostages at risk.
Asked in a Fox News interview on Thursday if Israel would “take control of all of Gaza”, the prime minister replied: “We intend to, in order to assure our security, remove Hamas there, enable the population to be free of Gaza.”
“We don’t want to keep it. We want to have a security perimeter,” he continued. “We want to hand it over to Arab forces that will govern it properly without threatening us and giving Gazans a good life.”
Israel already controls around 75% of Gaza and has largely sealed its borders.
To take full control, it would need to launch ground operations in the remaining areas that have not been destroyed, where most of Gaza’s two million population have sought refuge.
Israel’s security cabinet, which would need to approve the military operations, began a meeting on Thursday evening, but for now no official announcement has been made.
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1:53
Netanyahu on Israel’s plans for Gaza
Plan will ‘put hostages and soldiers in danger’
The plan has been criticised by many, including families of hostages being held by Hamas and a top Israeli Defence Force (IDF) official.
Einav Zangauker, the mother of hostage Matan Zangauker, said Mr Netanyahu promised her that he would pursue a deal to free the hostages.
She said in a post on X: “Someone who talks about a comprehensive deal doesn’t go and conquer the Strip and put hostages and soldiers in danger.
“Netanyahu and his partners are about to condemn [Matan] to death.”
Israel’s military chief of staff, Eyal Zamir, has warned against occupying Gaza, saying it would endanger the hostages and put further strain on the IDF, according to Israeli media reports.
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In an illustration of the kind of opposition Israel could face internationally if it purses the plan, a Jordanian official aid Arabs would “only support what Palestinians agree and decide on”.
“Security in Gaza must be done through legitimate Palestinian institutions,” the source said.
“Arabs will not be agreeing to Netanyahu’s policies nor clean his mess.”
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0:50
Israeli hostage families sail near Gaza
At least 42 more Palestinians killed by Israeli fire, say hospitals
It comes after at least 42 Palestinians were killed in Israeli airstrikes and shootings across southern Gaza on Thursday, according to local hospitals.
At least 13 of those people were seeking aid in an Israeli military zone where UN aid convoys are regularly overwhelmed by desperate crowds and looters.
Image: An Israeli soldier, standing next to an Israeli flag, looks out across Gaza. Pic: Reuters
Another two were killed on roads leading to sites run by the Israel- and US-backed Gaza Humanitarian Foundation (GHF), according to Nasser Hospital, which received the bodies.
The GHF said there were no violent incidents at or near its sites on Thursday.
The war in Gaza began when Hamas killed about 1,200 people – mostly civilians – in its attack on 7 October 2023 and abducted 251 others. They still hold approximately 50 of those hostages – with 20 believed to be alive – after most of the others were released in ceasefires or other deals.
Israel’s retaliatory offensive has killed more than 61,000 Palestinians, according to Gaza’s Hamas-run health ministry, which does not differentiate between militants and civilians in its count.
Vladimir Putin has played down the possibility of a meeting with Volodymyr Zelenskyy, saying that while it is possible, certain conditions must be met.
The Russian president was responding to an American proposal of a trilateral meeting between him, the Ukrainian president and Donald Trump.
The idea was floated by Steve Witkoff, the US president’s envoy during talks with Mr Putin on Wednesday, Kremlin aide Yuri Ushakov said.
Mr Ushakov said the three-way option was “simply mentioned by the American representative during the meeting in the Kremlin”.
He added, however: “This option was not specifically discussed.”
On the prospect of meeting Mr Zelenskyy, Vladimir Putin said: “I have already said many times that I have nothing against it in general – it is possible.”
However, he distanced himself from any such meeting happening soon, adding: “But certain conditions must be created for this. Unfortunately, we are still far from creating such conditions.”
Image: Pic: AP
Mr Zelenskyy offered to speak to Vladimir Putin in May, challenging him to meet in Istanbul for talks on ending the war in Ukraine – an invitation the Russian leader declined.
While a trilateral meeting appears to be off the agenda, Mr Ushakov said an agreement had been reached for Donald Trump and Vladimir Putin to meet “in the coming days”.
After the US president touted a “very good prospect” of the leaders meeting for Ukraine ceasefire talks, Mr Ushakov said on Thursday that Russian and American officials had started working on the details.
“At the suggestion of the American side, an agreement was essentially reached to hold a bilateral meeting at the highest level in the coming days,” he said.
“We are now beginning concrete preparations together with our American colleagues.”
Regarding a trilateral meeting, Mr Ushakov said: “We propose, first of all, to focus on preparing a bilateral meeting with Trump, and we consider it most important that this meeting be successful and productive.”
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2:10
Will Putin agree to Trump’s condition to meet Zelenskyy?
It would be the first time the two leaders have met since Mr Trump returned to office, and follows a three-hour meeting between Mr Putin and Steve Witkoff in Moscow on Wednesday.
Following the meeting, Volodymyr Zelenskyy said it appeared that Russia was “more inclined to a ceasefire”.
The Ukrainian president said he planned to speak on Thursday to German Chancellor Friedrich Merz, as well as contacts from France and Italy.
He said he planned to discuss a ceasefire, a leaders’ summit and long-term security, adding: “Ukraine has never wanted war and will work toward peace as productively as possible.”
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A poll from Gallup suggests 69% of Ukrainians support a negotiated end to the war with Russia – an almost complete reversal from 2022, when 73% favoured fighting until victory.
Most said they were sceptical the war would end soon, with 68% saying they believed it was unlikely that active fighting would stop within the next 12 months.