KYIV, Oct 18 (AFP) - Russian President Vladimir Putin said on Wednesday (Oct 18) the long-range missiles Washington had supplied Kyiv would only prolong the country's agony, hours after Ukraine's leader Volodymyr Zelenskyy said they had already proved their worth.

Ukraine also reported more deaths from the latest wave of Russian missile strikes and said they were bracing for an expected fresh assault on the frontline town of Avdiivka.

It had been a "mistake" for Washington to give Ukraine long-range ATACMS missiles, Putin told journalists at a news conference in Beijing.

"War is war, and, of course ... they pose a threat, that goes without saying," he said in response to questions about the weapons.

"But most importantly, this will not change the situation on the line of contact dramatically at all," he added.

The decision to supply the missiles had been "another mistake on the part of the United States," he said. "It just prolongs the agony."

White House confirmed on Tuesday that it had provided Ukraine with the longer-range weapons they had requested to strike deep inside Russian-held territory. According to US media outlets the ATACMS have a maximum range of around 160km.

Russian officials had already accused Ukraine on Tuesday of using the US-supplied missiles to attack Berdyansk, a Russian-controlled port city in Ukraine's southeastern Zaporizhzhia region.

Zelenskyy confirmed Ukraine had used the missiles after the attacks, but did not give details about how or when they were deployed.

"They have performed very accurately. ATACMS have proven themselves," he said in an evening address Tuesday.

On Wednesday, he posted on X, formerly Twitter, to say he had had talks with French President Emmanuel Macron "on the next steps to strengthen Ukraine's air defence, long-range, and naval capabilities".

Zelenskyy later said in his evening address that he had discussed "the work of 'grain corridors' in the Black Sea" which he said were "important not only for our country but also for the whole world, for global stability".

Macron said that the multiple unfolding global crises would "in no way weaken" French or EU support to Kyiv.

Russia on Wednesday said it had shot down two Ukrainian missiles targeting Crimea, which was annexed by Russia in 2014 and is increasingly under fire from Ukrainian strikes.

Russia's defence ministry said the missile debris fell in a deserted area and there was no damage or casualties.

Photo from AFP