The wreckage and debris found in the Atlantic Ocean Tuesday morning is indeed from Air France Flight 447, Brazilian military confirmed Tuesday afternoon. The military identified a 3-mile path of debris hundreds of miles from the shore. All 228 people on board are presumed to have died when the plane crashed in the sea Sunday night. "The discovery came just hours after authorities announced they had found an airplane an airplane seat, an orange buoy and signs of fuel in a part of the Atlantic Ocean with depths of up to three miles," the Associated Press reported. The cause of the crash is still unknown, though several speculations are emerging: experts believe the plane may have flown into a lightning strike, or into the fiercest part of a tropical storm.