Ukraine's President Volodymyr Zelensky has told British media that a ceasefire without security guarantees for his country would not bring a lasting end to Russia's invasion after allies called for a truce.

At a press conference on Sunday after talks with European allies in London, Zelensky dismissed as "not enough" the idea that a ceasefire would end the war.

Following the crisis summit, French President Emmanuel Macron said that France and Britain were proposing a one-month truce in Ukraine "in the air, at sea and on energy infrastructure" although not, initially at least, covering ground fighting.

Zelensky told journalists shortly before departing Britain that "it will be a failure for everyone if Ukraine is forced into a ceasefire without serious security guarantees". He predicted that Russia would break the deal and Ukraine would retaliate, reports AFP.

Under the Anglo-French proposal, European ground troops would only be deployed to Ukraine in a second phase, Macron said in an interview published in Le Figaro late on Sunday.

French Foreign Minister Jean-Noel Barrot said yesterday, "Such a truce on air, sea and energy infrastructure would allow us to determine whether Russian President Vladimir Putin is acting in good faith when he commits to a truce. And that's when real peace negotiations could start."

Meanwhile, the Kremlin said yesterday that pledges made by European leaders at the London summit on Ukraine over the weekend to increase funding to Kyiv will not help bring about a peaceful resolution to the conflict, reports Reuters.

In Ukraine, officials yesterday reported an unspecified number of fatalities from a Russian missile strike on a military training ground around 130 kilometres (80 miles) from the front line.

"In the middle of the day, on March 1, the enemy attacked a military unit on the territory of a training ground... in the Dnipropetrovsk region," Ukraine's Commander-in-chief Oleksandr Syrsky said on social media.

"The attack by an Iskander-M ballistic missile with a cluster munition resulted in deaths and injuries," he said, without providing figures.

A military source told AFP that the strike hit "an army training ground near the village of Cherkaske" outside the city of Dnipro.