NEW ORLEANS (AP) _ The wreckage of the only German submarine sunk in the northern Gulf of Mexico during World War II has been found, two oil companies announced Friday.

The wreckage of the U-166 was found during surveying for a planned underwater pipeline route, BP Amoco PLC and Shell Oil Co. said at a news conference at the national D-Day Museum in New Orleans.

The sub lies not far from the wreckage of the American passenger freighter S.S. Robert E. Lee, which the U-166 sank on July 30, 1942. The U.S. military sank the German sub shortly after that attack.

The sub was found about 45 miles from the mouth of the Mississippi River in about 5,000 feet of water by an underwater robot, the companies said.