These are the main aspects of the deal set out by the US:
• The US and Russia have agreed to safe navigation in the Black Sea, which had been a key focus of talks this week • Additionally, they agreed to work together on measures banning strikes on energy infrastructure in Russia and Ukraine • Washington will also help to restore Russia’s access to global markets for agricultural and fertiliser exports, the White House said – although where this leaves Western sanctions against Russia is unclear at this stage.
The US also said it has agreed it will remain committed to returning forcibly transferred Ukrainian children.
Ukraine’s defence minister Rustem Umerov confirmed the agreement, but added that Kyiv maintains any movement by Russian military vessels outside of eastern part of the Black Sea will constitute violation of the spirit of this agreement.
“In this case Ukraine will have full right to exercise right to self-defence,” he said.
He added: “All parties agreed to develop measures for implementing the presidents’ agreement to ban strikes against energy facilities of Ukraine and Russia.”
The Kremlin has confirmed that it has agreed to the ceasefire but there has been a disagreement over the timing and conditions.
While Volodymyr Zelenskyy said he understood the ceasefire would start immediately after the US announcement, Moscow has countered, saying it will only come into force after Western sanctions are lifted against companies involved in food and fertiliser exports.
Datawrapper
This content is provided by Datawrapper, which may be using cookies and other technologies.
To show you this content, we need your permission to use cookies.
You can use the buttons below to amend your preferences to enable Datawrapper cookies or to allow those cookies just once.
You can change your settings at any time via the Privacy Options.
Unfortunately we have been unable to verify if you have consented to Datawrapper cookies.
To view this content you can use the button below to allow Datawrapper cookies for this session only.
He says Russia will be quite happy dragging the US through peace talks without making any meaningful concessions.
The deal is one the US “can boast about” – without it changing much on the ground for Ukraine, he says.
“The Russians will be quite happy about that because they’ll just keep going down more and more rabbit holes and they’ll present little gains for the US,” he explains.
“But they won’t address the central issue,” he says.
No real deal can be agreed unless Donald Trump starts putting meaningful pressure on Vladimir Putin, he says.
Image: A Ukrainian patrol boat in the Black Sea in 2024. Pic: Reuters
“Unless the Americans are prepared to pressure Russia as opposed to just keeping offering them more advantages, the war will just go on.”
He also says Mr Trump will stay interested until it “gets difficult”, at which point he’ll “just go onto something else”.
“He’s a disrupter, but when disruption becomes hard to follow through, he goes on to the next topic, and I think that’s what will happen.”
Why is Russia willing to agree to a ceasefire at sea now?
Under the ceasefire at sea, Russia would once again be able to export farm produce and fertiliser through the Black Sea, getting relief from sanctions imposed by Western countries.
The US even referred to helping Russia access the world market again for agricultural products in its statement.
According to Prof Clarke, Russia is happy to continue fighting on land, where it is slowly making gains, while signing up to something that protects its ships at sea – where Ukraine has been growing in confidence and damaging Russian vessels.
And it helps with Russia’s goal of getting its equipment out of the Black Sea.
Today’s agreement has come in the midst of negotiations between Russia, the US and Ukraine in Riyadh in recent days centred on the Black Sea.
But the basis of the negotiations was a deal to secure shipping there that collapsed more than 18 months ago.
That UN-backed deal was negotiated in July 2022 between Turkey, the UN and Russia as a way of ensuring that Ukraine, one of the breadbaskets of the world, could keep exporting grain via its southern ports without being attacked.
It was known as the Black Sea grain initiative.
That deal benefited Russia, as it also allowed for greater Russian agricultural exports – but but Moscow pulled out of the initiative in July 2023 after accusing the West of reneging on this part of the agreement.
This meant Russia stopped granting safe passage to cargo ships going to and from Ukraine, and the country’s grain exports subsequently slumped.
But Russia is now said to be keen to revive parts of the grain deal.
What happened the last time Ukraine and Russia had a ceasefire agreement?
Last week, Mr Putin agreed to an immediate 30-day pause in strikes on Ukrainian energy infrastructure.
However, within 24 hours Ukraine and Russia accused the other of breaking the pledge.
The White House is considering inviting Volodymyr Zelenskyy to a meeting between Donald Trump and Vladimir Putin in Alaska, according to reports in the US.
A senior US official and three people briefed on internal discussions have told Sky News’ US partner network NBC News that the Trump administration is now considering inviting the Ukrainian president to the summit.
“It’s being discussed,” one of the people briefed on the talks was quoted as saying.
The sources said a visit by Mr Zelenskyy has not been finalised – and it is unclear whether the Ukrainian leader will be in Alaska for the summit.
However, the senior administration official said it is “absolutely” possible.
“Everyone is very hopeful that would happen,” the official said.
More from World
Asked whether the US had officially invited Mr Zelenskyy to Alaska, a senior White House official said: “The President remains open to a trilateral summit with both leaders. Right now, the White House is focusing on planning the bilateral meeting requested by President Putin.”
Mr Trump told reporters at the White House on Friday before the Alaska summit was confirmed that “we’re getting very close to a deal” that would end the war.
The US president added there will be “some swapping of territories to the betterment of both sides”.
Please use Chrome browser for a more accessible video player
1:31
US diplomacy ‘totally amateur’
Zelenskyy suggests he’s unwilling to give up territory
However, the Ukrainian president warned on Saturday that allowing Russia to keep territory it has occupied in Ukraine will result in another invasion.
He said allowing Mr Putin to annex Crimea in 2014 didn’t prevent Russia forces from occupying more parts of Ukraine during the current conflict.
Mr Zelenskyy added: “Now, Putin wants to be forgiven for seizing the south of our Kherson region, Zaporizhzhia, the entire territory of Luhansk and Donetsk regions, and Crimea. We will not allow this second attempt to partition Ukraine.
“Knowing Russia – where there is a second, there will be a third.”
Please use Chrome browser for a more accessible video player
2:28
Zelenskyy: Ukraine will not give land to ‘occupier’
NATO allies say Ukraine must be involved in negotiations
The reports Mr Zelenksyy could be invited to Alaska come as Ukraine and several NATO allies have reportedly been privately concerned Mr Trump might agree to Mr Putin’s proposals for ending the war without taking their positions into account.
In a joint statement on Saturday night, UK Prime Minister Sir Keir Starmer and the leaders of France, Italy, Germany, Poland, Finland and the European Commission said Ukraine’s future cannot be decided without Kyiv.
They said: “Ukraine has the freedom of choice over its own destiny. Meaningful negotiations can only take place in the context of a ceasefire or reduction of hostilities.
“The path to peace in Ukraine cannot be decided without Ukraine.
“We remain committed to the principle that international borders must not be changed by force.
“The current line of contact should be the starting point of negotiations.”
Image: From left: Volodymr Zelenskyy, Donald Trump and Vladimir Putin. Pics: AP
UK hosts Ukrainian officials ahead of summit
British Foreign Secretary David Lammy had earlier hosted a meeting of top Ukrainian officials and European national security advisers alongside US vice-president JD Vance on Saturday ahead of the Trump-Putin meeting.
The meeting took place at the foreign secretary’s official country retreat, Chevening, in Kent, where Mr Vance is staying at the start of a UK holiday.
After the meeting, Mr Lammy said: “The UK’s support for Ukraine remains ironclad as we continue working towards a just and lasting peace.”
Image: From left: Rustem Umerov, David Lammy, JD Vance and Andriy Yermak. Pic: X/David Lammy
It is understood that the meeting had been called at Washington’s request, and included representatives from the US, Ukraine, France, Germany, Italy, Finland and Poland as well as the UK.
Ukraine was represented by Rustem Umerov, secretary of the country’s national security and defence council, and the head of Mr Zelensky’s office, Andriy Yermak.
In a post on social media, Mr Yermak said the allies’ positions were “clear” that “a reliable, lasting peace is only possible with Ukraine at the negotiating table, with full respect for our sovereignty and without recognising the occupation”.
Ahead of the meeting at Chevening, Sir Keir discussed the talks in a call with Mr Zelenskyy on Saturday and also spoke to French President Emmanuel Macron.
A Downing Street spokeswoman said Sir Keir and Mr Macron “discussed the latest developments in Ukraine, reiterating their unwavering support for President Zelenskyy and to securing a just and lasting peace for the Ukrainian people”.
Although close to Russia geographically – less than three miles away at the narrowest point – it’s a very long way from neutral ground.
The expectation was they would meet somewhere in the middle. Saudi Arabia perhaps, or the United Arab Emirates. But no, Vladimir Putin will be travelling to Donald Trump’s backyard.
It’ll be the first time the Russian president has visited the US since September 2015, when he spoke at the UN General Assembly. Barack Obama was in the White House. How times have changed a decade on.
The US is not a member of the International Criminal Court, so there’s no threat of arrest for Vladimir Putin.
But to allow his visit to happen, the US Treasury Department will presumably have to lift sanctions on the Kremlin leader, as it did when his investment envoy Kirill Dmitriev flew to Washington in April.
And I think that points to one reason why Putin would agree to a summit in Alaska.
Please use Chrome browser for a more accessible video player
Instead of imposing sanctions on Russia, as Trump had threatened in recent days, the US would be removing one. Even if only temporary, it would be hugely symbolic and a massive victory for Moscow.
The American leader might think he owns the optics – the peace-making president ordering a belligerent aggressor to travel to his home turf – but the visuals more than work for Putin too.
Shunned by the West since his invasion, this would signal an emphatic end to his international isolation.
Donald Trump has said a ceasefire deal is close. The details are still unclear but there are reports it could involve Ukraine surrendering territory, something Volodymyr Zelenskyy has always adamantly opposed.
Either way, Putin will have what he wants – the chance to carve up his neighbour without Kyiv being at the table.
And that’s another reason why Putin would agree to a summit, regardless of location. Because it represents a real possibility of achieving his goals.
It’s not just about territory for Russia. It also wants permanent neutrality for Ukraine and limits to its armed forces – part of a geopolitical strategy to prevent NATO expansion.
In recent months, despite building US pressure, Moscow has shown no intention of stopping the war until those demands are met.
It may be that Vladimir Putin thinks a summit with Donald Trump offers the best chance of securing them.
Datawrapper
This content is provided by Datawrapper, which may be using cookies and other technologies.
To show you this content, we need your permission to use cookies.
You can use the buttons below to amend your preferences to enable Datawrapper cookies or to allow those cookies just once.
You can change your settings at any time via the Privacy Options.
Unfortunately we have been unable to verify if you have consented to Datawrapper cookies.
To view this content you can use the button below to allow Datawrapper cookies for this session only.