The United States will sell Ukraine up to $138 million worth of equipment to maintain and upgrade its HAWK air defense systems to help defend against Russian drone and cruise missile attacks, a U.S. State Department official told Reuters on Tuesday. The U.S. began shipping HAWK interceptor missiles to Ukraine in 2022 as an upgrade to the shoulder-launched Stinger air defense missile systems - a smaller, shorter-range system.

Tuesday's emergency foreign military sale is worth as much as $138 million, the official said, speaking on condition of anonymity.