Part of an oil slick of several kilometers follows the stricken Bahamas-flagged Prestige oil tanker, second top right, that is loaded with 77,000 metric tons, 85,000 US tons, of fuel oil, as it is towed away from the northwestern coast of Spain near Muxia by two tugboats to avoid a environmental catastrophe Friday Nov. 15, 2002, after the ship sprang a leak in a storm Wednesday