KYIV, Ukraine (AP) – Russian President Vladimir Putin has warned the West not to send longer-range rocket systems to Ukraine. The warning comes as Russian forces claim to have destroyed Western military supplies Sunday in their first such airstrikes on Ukraine’s capital in more than a month. U.S. has announced plans to deliver $700 million of security assistance for Ukraine that includes medium-range rockets. Moscow also accuses the West of closing off lines of communication by forcing Foreign Minister Sergey Lavrov’s plane to cancel a trip to Serbia for talks on Monday. A Serbian paper reports that neighboring countries Bulgaria, North Macedonia and Montenegro closed their airspace to Lavrov’s plane.