Deep sea explorers have found two Japanese aircraft carriers that were sunk in battle in World War Two.
The carriers were among seven ships that went down in the Battle of Midway, a major air and sea battle fought between the US and Japan in 1942.
One ship, the Kaga, was discovered last week, while wreckage from another carrier, Akagi, was found on Sunday.
This month’s discoveries came after weeks of searching by crew members based on the vessel Petrel. The Petrel is owned by Vulcan Inc, a company created by the late Microsoft co-founder Paul Allen.
The crew deployed an autonomous underwater vehicle （AUV） fitted with sonar, which helped to pinpoint the locations of the Kaga and Akagi.
Both ships were found lying about 18,000 feet （5,490 metres） under water within the Papahanaumokuakea Marine National Monument - the largest marine conservation area in the world.
Aircraft carrier：名詞，航空母艦。例句：There are two flighter jets on the aircraft carrier. （這艘航空母艦上有兩架戰鬥機。）
Wreckage：名詞，殘骸。例句：After the accident happened, rescuers finally find the wreckage of the airplane. （在意外發生後，搜救人員終於找到飛機的殘骸。）
Largest：形容詞，最大的。例句：Russia is the largest country in the world. （俄羅斯是世界上最大的國家。）