Ukraine-Russia war latest: Zelensky warns Putin is planning fresh ground invasion despite ceasefire pleas

Ukrainian forces are holding their positions in Russia’s Kursk region, President Zelensky said, after US President Donald Trump’s claim on Friday that “thousands" of Ukrainian troops had been surrounded by Russian forces.

“The operation of our forces in the designated areas of the Kursk region continues,” Zelensky said. “Our troops continue to hold back Russian and North Korean groupings in the Kursk region. There is no encirclement of our troops.”

Earlier on Saturday, Zelensky accused Moscow of massing troops along the border and warned that if Russia rejected the US proposal, Trump's administration would deliver a “specific, harsh, and straightforward” response.

“The build up of Russian forces indicates that Moscow intends to keep ignoring diplomacy. It is clear that Russia is prolonging the war.”

Russia and Ukraine exchanged intense aerial strikes overnight, with both sides reporting over 100 enemy drones over their territories on Saturday, reported Associated Press.

The Ukrainian air force reported on Saturday that Russia had launched an overnight assault of 178 drones and two ballistic missiles. Ukrainian forces managed to shoot down around 130 drones, while 38 others failed to hit their targets.

Russian strikes targeted energy facilities, causing severe damage to infrastructure in the Dnipropetrovsk and Odesa regions, according to a statement from Ukraine’s private energy company DTEK.

“The damage is significant. Energy workers are already on the ground, doing everything possible to restore power to homes as quickly as possible,” the company said.

Falling drone debris in Russia's Volgograd region ignited a fire in the Krasnoarmeysky district near a Lukoil oil refinery, according to governor Andrei Bocharov. Local media reported that nearby airports temporarily suspended flights. No casualties have been reported.

Military leaders are set to convene in London this week to develop “robust” strategies for a potential peacekeeping force in Ukraine.

Following a call with world leaders on Saturday morning, UK prime minister Sir Keir Starmer confirmed that preparations for the peacekeeping operation would progress to an “operational phase,” with senior generals scheduled to meet on Thursday.

“Our militaries will meet on Thursday this week here in the United Kingdom to put strong and robust plans in place to swing in behind a peace deal and guarantee Ukraine's future security,” he said.

Ukrainian President Volodymyr Zelensky, who participated in Saturday's call, has expressed support for a European peacekeeping force backed by the United States as a means to ensure Ukraine’s security in the event of a ceasefire.

Sir Keir Starmer held a virtual meeting with 29 other world leaders to discuss peace in Ukraine.

The countries in the “coalition of the willing”, which include Britain, France, Australia and Canada, will discuss how to help Kyiv deter future Russian aggression in the event of any peace deal.

The leaders discussed how countries plan to contribute to the coalition of the willing, ahead of a military planning session next week.

After humiliating Zelensky into submission, Trump briefly put the ball into Putin’s court to accept a ceasefire, writes Jon Sopel. But the US president is not the master strategist he likes to think he is – and now has a crunch decision to make about what comes next

• Military chiefs meeting in UK: Plans for a Ukraine peacekeeping force are moving into an "operational phase," with military leaders convening on Thursday to discuss security support.
• International commitment to Ukraine: Sir Keir held talks with Nato, EU leaders, and allies, reaffirming long-term support for Ukraine’s defence and deterrence against future Russian aggression.
• Ceasefire negotiations and pressure on Russia: Leaders welcomed the Jeddah peace agreement and Ukraine’s acceptance of a US-proposed 30-day ceasefire, urging Russia to agree and stop attacks. If Russia refuses, efforts will intensify to strengthen Ukraine and weaken Russia’s war capabilities.
• Sanctions and Russian assets: Discussions included tightening sanctions on Russia and exploring ways to use frozen Russian assets to fund Ukraine’s recovery, though legal complexities remain.
• Coalition of the willing and military planning: A growing alliance is making new defence commitments, with discussions on how different countries will contribute military capabilities, potentially including UK troops and aircraft.
• Next steps: The UK will play a leading role in backing a peace deal, with military planning this week to ensure Ukraine’s security, prepare for potential deployment, and monitor any ceasefire violations.

A fire that was sparked by Ukraine's drone attack on Friday at the Tuapse oil refinery in Russia's Krasnodar region has been contained but not yet extinguished, the region's administration said late on Saturday.

The fire has been contained to an area of 1,250 square metres (13,500 square feet), the administration said in a post on the Telegram messaging app. Nearly 200 firefighters are fighting the blaze, it said.