The Russian leader was responding to a plan for a 30-day ceasefire, which Ukraine agreed to earlier this week following talks with the US.

Ukrainian President Volodymyr Zelensky described Putin’s response to the plan as “manipulative” and called for more sanctions on Russia.

Meanwhile, the US placed further sanctions on Russian oil, gas and banking sectors.

Russian officials said Putin was expected to hold talks on the ceasefire on Thursday evening with US President Donald Trump’s special envoy Steve Witkoff, who had flown to Moscow earlier that day.

Late on Thursday and overnight, both Russia and Ukraine reported new enemy drone attacks.

Ukraine said seven people – including children – were injured in the north-eastern city of Kharkiv.

Russia reported a large fire at an oil facility in the southern city of Tuapse.

Speaking at a news conference in Moscow on Thursday, Putin said of the ceasefire proposal: “The idea is right – and we support it – but there are questions that we need to discuss.”

A ceasefire should lead to “an enduring peace and remove the root causes of this crisis”, Putin said.

“We need to negotiate with our American colleagues and partners,” he said. “Maybe I’ll have a call with Donald Trump.”

Putin added: “It will be good for the Ukrainian side to achieve a 30-day ceasefire. “We are in favour of it, but there are nuances.”

One of the areas of contention is Russia’s western Kursk region, Putin said, where Ukraine launched a military incursion last August and captured some territory.

He claimed Russia was fully back in control of Kursk, and said Ukrainian troops there “have been isolated”.

“They are trying to leave, but we are in control. Their equipment has been abandoned,” Putin said.

“There are two options for Ukrainians in Kursk – surrender or die.”

Ukraine’s top commander Oleksandr Syrskyi said a day earlier that Ukrainian troops would hold defensive positions in the Kursk region “as long as it is expedient and necessary” despite “increased” pressure from Russian forces.

At Thursday’s press conference, Putin also outlined some of his questions over how a ceasefire would work. He asked: “How will those 30 days be used? For Ukraine to mobilise? Rearm? Train people? Or none of that? Then a question – how will that be controlled?

Putin “doesn’t say no directly”, Zelensky said in his nightly video address, but “in practice, he’s preparing a rejection”.

He added: “Putin, of course, is afraid to tell President Trump directly that he wants to continue this war, wants to kill Ukrainians.”

The Russian leader had set so many pre-conditions “that nothing will work out at all”, Zelensky said.