A Vietnam Airlines flight to Paris lurched violently in flight on Wednesday, causing 24 of those on board to suffer injuries ranging from bruises to broken bones, French authorities said.
"It might have been some kind of air pocket," a Paris airport official said, while authorities said the exact nature of the turbulence and the cause of the injuries had yet to be determined.
"It could have been turbulence," another airport employee said, speaking on condition of anonymity while investigations were ongoing.
Eight of those on board were taken to the Robert Ballanger hospital in the northern suburbs of Paris, while others were treated by fire crews before being brought to the airport's clinic to be examined.
Of those hurt, 22 were passengers and two were crew members.
Vietnam Airlines was not immediately available for comment.