Ten sailors are missing and five were injured after DDG-56 USS John S. McCain was involved in a collision with the Alnic MC, a 600-foot oil tanker. The collision took place off Singapore about 5.24 a.m. local time on August 21. Five sailors were injured in the collision, and 10 are missing. The McCain suffered “significant damage to the hull” after a hole was torn in the warship beneath the waterline. It led to flooding of crew accommodation and a communications rooms and, most critically, caused flooding in a shaft tunnel.