LONDON/WASHINGTON, Oct 11 (Reuters) - Russian Foreign Minister Sergei Lavrov said on Tuesday that Moscow was open to talks with the West on the war in Ukraine, a claim Washington dismissed as "posturing" because Russia has continued to strike Ukrainian cities.His emphasis on Russia's receptiveness to talks came after a series of stinging defeats since the start of September that have swung the momentum of the conflict in favour of Ukraine.Register now for FREE unlimited access to Reuters.comLavrov said officials, including White House national security spokesman John Kirby, had said the United States was open to talks but that Russia had refused.State Department spokesperson Ned Price said Washington had "very little confidence" that Russia was making a legitimate offer to talk because Lavrov's comments came within hours of Russian missile strikes that killed civilians in Ukraine.Lavrov also said Russia would not turn down a meeting between President Vladimir Putin and U.S. President Joe Biden at a mid-November summit of the Group of 20 in Indonesia, and would consider the proposal if it receives one."