Ukraine's President, Volodymyr Zelensky, has said he had a very constructive phone call with Donald Trump's peace envoy, Steve Witkoff, and the US president's son-in-law, Jared Kushner.

Zelensky noted they discussed how to ensure that Russia stuck to any potential deal to end its war with Ukraine, expressing his determination to continue working with the US.

Ukrainian officials also joined the call from Miami, where they are engaged in a third day of talks on US efforts to engineer a peace deal with Russia. Moscow does not appear to have made any concessions and continues its massive bombardments of Ukraine.

Ukraine is determined to keep working in good faith with the American side to genuinely achieve peace, Zelensky stated on social media. He highlighted key discussions that could lead to an end to the bloodshed and eliminate threats of future Russian invasions.

Nonetheless, Russia has increased its air and missile strikes, prompting condemnation from Ukraine's European allies. French President Emmanuel Macron expressed solidarity with Ukraine and emphasized France's commitment to work with partners for de-escalation and a ceasefire.

Macron also confirmed plans to meet with Zelensky, UK Prime Minister Sir Keir Starmer, and German Chancellor Friedrich Merz in London to discuss the ongoing peace talks. The leaders are focusing on finding a mutual agreement on securing Ukraine's safety post-conflict.

Recent strikes have devastated key infrastructure, with reports of significant damage at a railway hub in Fastiv and further blackouts across the country due to targeted attacks on energy facilities.

The US and Ukrainian negotiators hope for a serious commitment from Russia towards long-term peace as they continue their discussions in Florida to finalize a US-backed peace plan.

Witkoff and Umerov, Ukraine's National Security Council Secretary, have found their two days of negotiations constructive and touched on essential deterrence capabilities for establishing a lasting peace.

The world is watching closely, as the prospect of ending the war hinges on Russia's willingness to reduce hostilities and commit to serious peace discussions.