In this undated photo released by the U.S. Navy, the Port-side bow of the Los Angeles class nuclear-powered fast attack submarine USS Hartford (SSN 768) is seen anchored off the US Naval Academy, in Annapolis, Md. The U.S. Navy's 5th Fleet says two of its vessels, a submarine, the USS Hartford and an amphibious ship, the USS New Orleans collided in the Strait of Hormuz between Iran and the Arabian peninsula early Friday.
 / AP photo