Mysterious leaks in the Nord Stream gas pipe network began with “powerful subsea blasts” and resulted from “deliberate actions”.
Two pipelines running underwater from Russia to Germany were damaged in a total of three places on Monday.
Nord Stream AG, the owner, described the breakages as “unprecedented”. The pipes were not pumping gas to Europe at the time the leaks were found amid the dispute over Russia’s war in Ukraine.
Mateusz Morawiecki, the Polish prime minister, said it was an “act of sabotage”, while his Danish counterpart Mette Frederiksen said she views the leaks as “deliberate actions”, and the Danish energy authority said any event like this was “extremely rare”.
Dramatic gas bubbles rising to the sea’s surface measure 100m in diameter and will continue for several days, the authority said.
The two pipes were damaged near the Danish island of Bornholm in the southern Baltic Sea.
The Kremlin said it could not rule out sabotage as a cause of the damage, with spokesman Dmitry Peskov describing developments as “very concerning news”.
A European security source said: “There are some indications that it is deliberate damage. You have to ask: Who would profit?”
A reading from a nearby seismograph, which records vibrations on the planet’s surface, was found to show spikes at similar times to when the losses in pressure in the pipes were first recorded, according to a German geology research centre.
Image: The gas leak from a Danish F-16 interceptor near Bornholm island. Photo: Danish Defence
‘No doubt these were explosions’
Sweden’s national seismology centre said its stations recorded “powerful subsea blasts” in the area where the gas leaks occurred, the latter measuring the equivalent of a magnitude-2.3 earthquake.
Bjorn Lund, a seismologist with Uppsala University who is part of Sweden’s national seismic network, told the national broadcaster SVT: “There is no doubt that these were explosions.”
He said the first was recorded in the early hours of Monday southeast of Bornholm. The latter and stronger blast on Monday evening was northeast of the island and equivalent to 100kg of dynamite.
“We know very well what an underwater blast looks like. And so in this case, there’s no doubt this is not an earthquake,” Mr Lund said.
Explosions in same area where gas leaks registered
Swedish state broadcaster SVT said the first explosion was recorded at 2.03am on Monday and the second at 7.04pm on Monday.
The warnings about the gas leaks came from the Maritime Authority at 1.52pm and 8.41pm on Monday respectively, after ships detected bubbles on the surface.
SVT said it had obtained the coordinates of the measured explosions, and they were in the same area where the gas leaks were registered.
Earlier, the country’s Maritime Authority had issued a warning about two leaks in the Nord Stream 1 pipeline, northeast of Bornholm, which until the Ukraine war provided about 60% of Germany’s gas needs.
On Monday, Denmark issued a warning about a leak in the yet-to-be-opened Nord Stream 2 pipeline, south of Dueodde, which had been built to boost the amount of Russian gas supplied to Germany.
Image: Workers at the construction site of the Nord Stream 2 gas pipeline
Were the leaks caused by Russian sabotage?
On Tuesday, a ceremony was held to inaugurate a new pipeline, Baltic Pipe, to carry Norwegian gas through Denmark to Poland, which it is hoped will ease some pressure on European gas supplies.
Simone Tagliapietra, an energy expert with the Bruegel think-tank in Brussels, said the leaks “can’t be a coincidence” and speculated they could have been caused by Russian sabotage or anti-Russian sabotage.
One possibility is Russia signalling it “is breaking forever with Western Europe and Germany” as Poland inaugurates its pipeline with Norway, he said.
Image: Satellites captured an image of the pipeline rupture. Pic: Planet Labs PBC
‘Unprecedented destruction’
The leak from Nord Stream 2, discovered by the Danish Defence F-16 interceptor response unit, prompted the setting up of a five nautical mile exclusion zone, to protect shipping from any danger.
The Danes have now marked off the leak from Nord Stream 1.
Nord Stream AG said it was impossible to estimate when the gas network system would be working again.
“The destruction that occurred on the same day simultaneously on three strings of the offshore gas pipelines of the Nord Stream system is unprecedented,” it said.
“It is not yet possible to estimate the timing of the restoration of the gas transport infrastructure.”
Nord Stream 1’s twin undersea pipelines opened in 2011, with the ability to supply up to 27.5 billion cubic metres of gas a year each.
Despite not carrying gas to Germany and beyond, both pipelines have apparently remained full of gas, which is now leaking into the sea.
It was not immediately clear what consequences would follow, especially as methane in the atmosphere is a driver of climate change. The EU Commission said it would analyse the potential impact.
German environmental group Deutsche Umwelthilfe said any effects from an explosion would be local and that some gas would dissolve in the sea.
In a stark and direct intervention, Martin Griffiths, the former UN humanitarian chief, has described the situation in Gaza as genocide.
The statement, made during an interview I conducted with Griffiths on The World, marks one of the most pointed accusations yet from a figure known to be deeply embedded in the world of international politics and diplomacy.
“I think now we’ve got to the point this is unequivocal. Of course it is genocide. Just as it is weaponising aid.
“We don’t need to look behind ourselves to see that’s the case. That should encourage us even more because we, of course, all doubted whether it would come to that level of definition.
“We all doubted whether famine is actually there. I think starvation is killing people. That’s bad enough. We don’t have to worry about famine, which is obviously there lurking in the shadows.
“Also, genocide… of course that’s what has happened. We only need to look at the statements made. Prime Minister Netanyahuhas the virtue of being very clear about his objectives.”
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3:14
Ex-Israeli aide dismisses genocide claims
His choice of words is extraordinary – not just for its gravity, but because it’s Griffiths who is saying it.
A veteran diplomat with decades of experience navigating complex international crises, Griffiths is known for his calm and thoughtful demeanour – not for inflammatory language.
For him to use the term “genocide” in a television interview signals a significant shift in how some within the international system are now interpreting events on the ground in Gaza – 20 months since Israel launched its war.
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Just weeks earlier, Tom Fletcher, another respected former British ambassador and current UN humanitarian chief, came close to using the phrase during a UN Security Council session.
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He said: “What more evidence do you need now? Will you act decisively to prevent genocide and to ensure respect for international humanitarian law? Or will you say instead: ‘we did all we could?'”
Whilst he stopped short, his tone showed a clear change in how leading international figures now view the direction of Israeli military operations in Gaza; staggering civilian deaths, and the statements made by Israeli officials prosecuting this war.
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Lawyers representing Israel against accusations brought by South Africa to the International Court of Justice last year – accusing its actions in Gaza of amounting to genocide – called the claims “unfounded”, “absurd” and amounting to “libel”.
They went on to say Israel respected international law and had a right to defend itself.
Now 41.2% of Europe finds itself in some form of drought, according to the latest update from the EU’s European Drought Observatory, which covers 11 to 20 May.
It is most acute in pockets of south-eastern Spain, Cyprus, Greece and Albania, where the strongest “alert” category has been issued, as well as parts of Poland and Ukraine.
But broad stretches of northern and eastern Europe through France, Germany, Poland and Ukraine also drying up, sowing concerns about crop yields.
On Thursday, the UK’s Environment Agency officially declared a drought in North West England after river and reservoir levels were licked away by a dry spring.
Image: More than 40% of Europe was in drought as of 11-20 May 2025. Pic: CEMS / EDO
Image: Heat was record high in March in Europe. The image on the right shows the south of the continent was much wetter than average and the north much drier. Source: Copernicus Climate Change Service
Greece tourism is ‘unsustainable’
In Greece, “overtourism” from millions flocking to its beaches adds further pressure to water supplies, said Nikitas Mylopoulos, professor of water resource management at Thessaly University.
“The tourist sector is unsustainable and there is no planning… leading to a tremendous rise in water demand in summer,” he told Sky News.
“The islands have an intense problem of drought and water scarcity.”
Islands like Santorini and Mykonos are now forced to ship in water from Athens or desalination plants to provide for showers and swimming pools. In the past, many residents could make do with local methods like rainwater harvesting.
But agriculture is a far bigger drain on the country’s water, with waste rife and policies lacking, said Prof Mylopoulos.
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1:55
‘Tropical nights’ soar in European hotspots
Wildfire season could be ‘particularly difficult’
This year’s hot and dry conditions are also fuelling the risk of yet another fierce wildfire season in Greece.
Last week civil protection minister Ioannis Kefalogiannis warned of a “particularly difficult” summer.
He said a record 18,000 firefighters have been deployed and the drone fleet almost doubled in a bid to combat fires being fuelled by a hotter climate.
Droughts and their causes are more complicated, but scientists at World Weather Attribution say global warming is exacerbating drought in some parts of the world, including around the Mediterranean.
Image: A drought was declared in northwest England on Thursday. Pic: Reuters
The International Hydropower Association said drought and intense rain in Europe are pushing power plants to “operate at the limits of their existing equipment”.
Extreme weather costs the EU about €28.3bn (£23.8bn) in lost crops and livestock per year, according to insurance firm Howden.
Hayley Fowler, professor of climate change impacts at Newcastle University, said: “With global warming, we expect more prolonged and intense droughts and heatwaves punctuated by more intense rainfall, possibly causing flash floods.
“In recent years, we have experienced more of these atmospheric blocks, causing record heat and persistent drought, as well as severe flooding in other locations in Europe.
“Recent months have been no different, with prolonged dry conditions and heatwaves in northern Europe and floods in southern Europe.”
At least 117 people have died and others are still missing after heavy flooding in Nigeria, an emergency official said.
Authorities initially said 21 people had died but this figure has today risen significantly.
Media reports quoting local government officials said a dam collapse has worsened the situation.
Ibrahim Hussaini, head of Niger State Emergency Management Agency, said some 3,000 houses were underwater in two communities.
Videos posted on social media show floodwater sweeping through neighbourhoods, with rooftops barely visible above the brown currents. One clip shows a tanker floating through a town.
Image: A tanker is swept away by floodwaters
The chairman of the Mokwa local government area suggested poor infrastructure has worsened the impact of the flooding.
Jibril Muregi has appealed to the government to start “long overdue” construction of waterways in the area under a climate resilience project.
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Image: Water appears to be flowing over a dam behind the town
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In a similar occurrence last September, torrential rains and a dam collapse in Nigeria’s northeastern Maiduguri caused severe flooding, leaving at least 30 people dead and displacing millions.
Nigeriais prone to flooding during the rainy season, which began in April – and flooding is becoming more common and extreme as the climate warms.
Hotter air is thirstier and can hold more moisture – about 7% more for every 1C warmer – meaning it unleashes heavier flooding when it rains.
Violent rain, which killed hundreds of people in Nigeria during 2022, was made at least 80 times more likely and 20% more intense by climate change, analysis by World Weather Attribution found.