President Abdel-Fattah el-Sisi also said Egypt was jointly investigating the Thursday crash with the French government. He said the submarine, which has the capacity to operate at a depth of 3,000 meters (9842 feet) below the surface, left for the site Sunday. Egypt is leading a multi-nation effort to search for the plane's black boxes and other clues that could help explain its sudden plunge into the sea. "It is very, very important to us to establish the circumstances that led to the crash of that aircraft," he said in comments broadcast live on Egyptian TV channels. Egypt's military on Saturday released the first images of aircraft debris plucked from the sea, including personal items and damaged seats.

Source: ABC News May 22, 2016 04:47 UTC