The Japanese raided Pearl Harbor and other military targets on Oahu with carrier-launched aircraft, including fighters, horizontal bombers, torpedo planes, and dive bombers. The planes struck here in two waves, beginning at 7:55 a.m., with a 15 minute lull about 8:30. Finding the American aircraft carriers absent, the Japanese zeroed in on U.S. battleships. Seven were lined up beside the mooring blocks visible across the channel on Battleship Row, where Japanese bombs destroyed USS Arizona. Twenty other vessels were sunk or damaged. As the Japanese planes returned to their carriers, smoke from burning battleships darkened the sky. The U.S. Pacific Fleet had suffered a serious blow, but not a fatal one, because the American aircraft carriers, submarines, destroyers, and most cruisers escaped damage, and the Navy’s shipyard, fuel storage tanks, submarine base, and communications facilities remained untouched. After being hit by as many as seven bombs, USS Arizona burned on Battleship Row; one 800-kilogram bomb ripped through the battleship’s upper decks and detonated a magazine, destroying the vessel’s forward section, blowing men from neighboring ships’ decks, and killing 1,177 of Arizona’s crew. USS West Virginia and USS Tennessee were visible behind Arizona, and a Japanese aerial photograph showed Battleship Row under attack, with oil slicks, shock waves from torpedo hits, white canvas awnings on sterns and bows, and Arizona’s forward section not yet exploded.