The underwater search has resumed for Malaysia Airlines Flight 370 — more than six months after the plane went missing.
The Australian Transport Safety Bureau said Monday that the GO Phoenix survey vessel began its search in a remote area of the Indian Ocean known as the "seventh arc" about 1,100 miles off Australia's West Coast.
The Malaysian government-financed GO Phoenix will be the first of three ships to try and find the plane in what officials say could be a year-long mission.
CNN: "Three ships will be equipped with a 'tow fish' that contain side-scan sonar and a camera to be towed about 100 meters above the ocean floor. Data will then be transmitted in real-time to the ship and on a daily basis via satellite to shore."
Dutch contractor Fugro, the company that set out on the previous mission in the southern Indian Ocean but came up empty-handed, will supply the two remaining vessels. They'll also be equipped with a "tow fish."
The search mission was put on hold four months ago while crews mapped out the ocean floor in the search area — roughly a 23,000-square-mile radius.
In a statement on October 1, the Australian government said new interpretation of existing data has helped narrow search efforts — which will now mainly take place underwater.
This video contains images from Getty Images / Greg Wood, Australian Department of Defense, Australian Maritime Safety Authority.