In an advisory, the U.S Maritime Administration assessed that "since early May, there is an increased possibility that Iran and/or its regional proxies could take action against U.S. and partners interests, including oil production infrastructure, after recently threatening to close the Strait of Hormuz. Iran or its proxies could respond by targeting commercial vessels, including oil tankers, or U.S. military vessels in the Red Sea, Bab al-Mandab Strait or the Persian Gulf".