U.S. Navy Ship Fired Warning Shots At Iranian Boats After Close Encounter Iranian fast-attack boats charged at two U.S. ships in the Persian Gulf on Monday evening, causing one of the U.S. vessels to fire warning shots, the U.S. Navy said Tuesday ....Three armed speed boats operated by the Iranian Revolutionary Guard Corps came within 68 yards of a U.S. Navy coastal patrol boat and a U.S. Coast Guard patrol boat operating in international waters of the Persian Gulf, the Navy said in a statement.U.S. personnel tried to hail the Iranian ships over the radio, but they did not respond,...