Passengers aboard Southwest Airlines Flight 812 last night are describing a sound like a gunshot, oxygen masks dropping from the ceiling and seeing sky through a hole in the cabin roof.
The National Transportation Safety Board says an "in-flight fuselage rupture" happened shortly after the Boeing 737 took off from Phoenix for Sacramento, California. Officials say the pilot made a "controlled descent from 36,000 feet to 11,000 feet" before making an emergency landing at a military base in Yuma, Arizona.
No serious injuries were reported among the 118 people aboard.
The FBI is calling it a "mechanical failure," not an act of
terror, but the cause is unknown.