Zelensky didn't reveal much detail about an updated plan, although he said there needed to be more investment for drones.

Ukraine has carried out successful naval strikes against Russian shipping during the war, particularly using explosives-packed marine drones. However, Ukrainian missions have largely been limited to the waters of the northern Black Sea.

"We need to sit down and discuss this seriously," Putin told reporters at the end of a three-day visit to Kyrgyzstan. He described U.S. President Donald Trump's 28-point peace plan as "a set of issues put forward for discussion" rather than a draft agreement.

A Russian drone and missile strike on the Ukrainian capital Kyiv has killed at least one person and injured seven others, city officials say. Early on Saturday morning residential buildings in several districts were hit and loud explosions could be heard across the city.

Ukraine says it used sea drones to strike two oil tankers that are part of Russia’s sanctioned shadow fleet and were a few dozen kilometres off the coast of Turkey.

Certainly, the latest rounds of American bargaining and pressure on Ukraine are the most substantial yet. “This isn’t another round of what we saw before,” says a Western diplomat in Kyiv. Those close to the talks speak of “serious progress” bringing some Ukrainian and Russian positions together.

Ukraine’s chief negotiator, in an exclusive interview, says conceding sovereign territory is off-limits in peace talks.

Russia confirms the US president's close aide will travel to Russia, hours after Trump tasked him with meeting Putin.

Russian President Vladimir Putin said that a US plan to end the war in Ukraine could “form the basis for future agreements” but renewed threats to seize more territory by force unless Kyiv withdraws.