Sky News reported the information.Speaking to reporters after the negotiations, the U.S. official outlined significant progress on what has been characterized as the most substantive peace discussions since the conflict began. Security guarantees for Ukraine emerged as a central element of the framework, with the official indicating that President Donald Trump is confident Moscow can be persuaded to accept NATO-style protections for Kyiv."There has been movement in narrowing the issues between the Russians and the Ukrainians after the latest talks," the official said, noting that conversations included more detailed exchanges on territorial questions than in previous sessions.The proposed security arrangement would mirror Article 5 of the NATO treaty, under which an armed attack against one member is treated as an attack against all alliance members. Such guarantees would represent a major shift in Russia's position, given Moscow's longstanding opposition to NATO expansion near its borders.According to the U.S. official, Russian negotiators have also signaled openness to Ukrainian membership in the European Union, a concession that could help bridge remaining gaps in the negotiations. The official expressed confidence that Moscow would ultimately accept the security provisions being discussed.While substantial hurdles remain, American officials view the latest diplomatic engagement as a potential breakthrough after months of stalled negotiations.