We've been here beforepublished at 16:56 BST

16:56 BST

Dan Johnson
Ukraine correspondent

This announcement seems to have come as a surprise, at least to Ukraine.

It sounds like it’s been announced unilaterally and then agreed to, rather than having been negotiated jointly.

President Zelensky has just posted on X, writing "Ukraine supports the ceasefire, and it is important that Russia support it as well".

He says he’s awaiting details from the Americans but that Ukraine always fully supports steps toward de-escalation.

But we’ve been here before.

On 14 September, President Trump wrote on Truth Social that both sides had agreed not to strike each other’s energy facilities. Russia continued attacking Ukraine’s power network so the reciprocal strikes went on.

Will this announcement, apparently out of the blue, have any more impact?

Image source, Getty Images

Ukrainian President Volodymyr Zelensky has just confirmed he backs the energy ceasefire announced by Trump.

"Ukraine supports the ceasefire, and it is important that Russia support it as well," he writes on X.

"We are awaiting details from the American side," Zelensky says. "For our part, Ukraine always FULLY supports steps toward de-escalation, the protection of lives, and the decisions needed to end the war and guarantee lasting peace."

His confirmation comes after he told US news site Axios a little while ago that the deal was "news to me".

In the post, Zelensky says he's spoken to about the partial truce with Canada's Mark Carney, Finnish President Alexander Stubb and Nato chief Mark Rutte.

Less than an hour before Trump made his announcement, Volodymyr Zelensky had reiterated Ukraine would halt attacks on Russian refineries if Moscow ended strikes on its energy infrastructure.

"Don't attack us. Don't kill our children. We will stop attack[ing] your diesel," he told ABC's This Week. "And I think it's [a] fair, fair deal."

Zelensky also indicated he'd be ready to hold fresh elections in exchange for a 60-day "total ceasefire" after the US president on Saturday said it was time "for a new leader" in Kyiv.

He previously resisted calls from the US for fresh elections, pointing to complications with holding a vote in parts of the country that are active war zones or under Russian occupation.

He, however, insisted that it was up to Ukrainian voters "to choose one or another person" to lead the country.

Donald Trump's post comes after tensions flared again with Ukraine's President Volodymr Zelensky over the weekend.

On Saturday, he said Zelensky "better damn well stop" authorising strikes on Russian oil refineries, and that it was "time for Ukraine to get a new president".

Watch the moment below:

Zelensky had criticised a surprise diesel deal between the US and Russia, announced on Friday. He called it a gift to Putin.

For context, the war has pushed up fuel prices around the world, putting pressure on Trump at home as Americans struggle with rising costs.

His party is also facing crucial midterm elections in just a few weeks' time.

Earlier today, Zelensky said Ukraine would stop striking Russian oil refineries if Moscow in turn stopped attacking its energy infrastructure.

• What is the diesel deal?

Image source, Reuters

Ukrainian President Volodymyr Zelensky has told US news site Axios that Donald Trump's announcement "was news for me".

"But if Russians agree to an energy ceasefire, Ukraine will agree," he says.

A senior official close to Zelensky has reportedly also told the Financial Times: "Nobody has heard [of it]."

Trump said earlier that "both parties have agreed", as he declared an immediate "energy ceasefire" between Russia and Ukraine.

The BBC is attempting to contact the Ukrainian side.

US President Donald Trump's post claiming an "energy ceasefire" has been struck was short and didn't contain much detail.

He wrote on Truth Social: "Effective immediately, there is an ENERGY CEASEFIRE in the War between Russia and Ukraine. Both parties have agreed. Do not break it!"

We've asked the White House for more detail.

Image source, Reuters

US President Donald Trump says an "energy ceasefire" has been agreed between Russia and Ukraine "effective immediately" and that both parties have agreed.

Russia is yet to comment, but US news site Axios reports Ukrainian President Volodymyr Zelensky says Trump's announcement is "news for me".

The president had earlier warned Ukraine to "damn well stop" attacking Russia's oil refineries.

It comes amid a bubbling row between Trump and Zelensky, who on Sunday said they will be "ready to stop striking Russian oil refineries if Russia stops striking our energy infrastructure".

Both Russia and Ukraine have stepped up attacks on infrastructure in recent months as the war between them continues into its fifth year following Russia's full-scale invasion.

We'll bring you more on this shortly.