Tensions reached a new high when, on 20 June, the Islamic Revolutionary Guard Corps shot down a U.S. RQ-4A Global Hawk surveillance drone, claiming that the drone violated Iranian airspace. IRGC commander Hossein Salami called the shoot-down a "clear message" to the U.S. while also warning that, though they were not seeking war, Iran was "completely ready" for it. U.S. Central Command later confirmed that the drone was shot down by Iranian surface-to-air missiles but denied that it violated Iranian airspace, calling it an "unprovoked attack" and in international airspace over the Strait of Hormuz. Iran and the United States provided conflicting GPS coordinates for the drone's location, making it unclear whether the drone was within Iran's 12-mile territorial boundary. President Trump called Iran's downing of the drone a "big mistake". The United States requested a June 24 closed-door United Nations Security Council meeting to address the regional tensions with Iran, according to diplomats.