News Summary

• The flight to Ontario, California, had reached 16,000ft (4,876m) when it began its emergency descent, according to flight tracking data.Images sent to news outlets show the night sky visible through the gap in the fuselage, with insulation material and other debris also seen..
• Alaska Airlines says it has returned some of its grounded Boeing 737 Max 9 jets to service after one of its planes lost a section of fuselage mid-flight.The airline apologised to those affected, saying an inspection found "no concerning findings"..
• Other pictures show the seat closest to the affected section, a window seat that passengers said was unoccupied, leaning forward without its cushion..
• "While we know little evidence of why this section of the fuselage has come out - this has nothing to do with the aircraft being grounded for 18 months," he told BBC News..
• "Diego Murillo said the gap was "as wide as a refrigerator".Fellow passenger Elizabeth Lee added: "Part of the plane was missing and the wind was just extremely loud..
• "They said there was a kid in that row who had his shirt was sucked off him and out of the plane and his mother was holding onto him to make sure he didn't go with it..