Researchers find second warship from WWII Battle of Midway

A crew of deep-sea explorers and historians looking for lost World War II warships have found a second Japanese aircraft carrier that went down in the historic Battle of Midway.

Vulcan Inc.'s director of undersea operations Rob Kraft and Naval History and Heritage Command historian Frank Thompson reviewed high frequency sonar images of the warship Sunday and say that it's dimensions and location mean it has to be the carrier Akagi.

The Akagi was found in the Papahanaumokuakea Marine National Monument resting in nearly 18,000 feet (5,490 meters) of water more than 1,300 miles (2,090 kilometers) northwest of Pearl Harbor.

The researchers used an autonomous underwater vehicle, or AUV, equipped with sonar to find the ship. The vehicle had been out overnight collecting data, and the image of a warship appeared in the first set of readings Sunday morning.

The find comes on the heels of the discovery of another Japanese carrier, the Kaga, last week.

"We read about the battles, we know what happened. But when you see these wrecks on the bottom of the ocean and everything, you kind of get a feel for what the real price is for war," said Frank Thompson, a historian with the Naval History and Heritage Command in Washington, D.C., who is onboard the Petrel.

"You see the damage these things took, and it's humbling to watch some of the video of these vessels because they're war graves."