Dozens of people were reportedly injured Monday by a "strong movement" aboard a LATAM Airlines flight from Australia to New Zealand.
The Boeing 787-9 Dreamliner was traveling from Sydney to Auckland when the incident took place.
The Chilean airline said in a statement to HNGN that there was "a technical event during the flight which caused a strong movement." It did not explain exactly what that technical event was.
Paramedics and emergency vehicles met the plane when it landed in Auckland.
About 50 people were treated at the scene for mostly minor injuries. The airline said 10 passengers and 3 cabin crew members were taken to Middlemore Hospital for medical checks.
One patient was reportedly believed to be in serious condition.
Passengers said several people were not wearing seatbelts when the plane suddenly dropped.
The airline canceled the plane's next flight.
"The safety of our passengers and crew is our top priority. LATAM is providing affected passengers with food and accommodation services due to the flight cancellation. LATAM deeply regrets any inconvenience and discomfort this situation may have caused its passengers, and reiterates its commitment to safety as a top priority," the airline said in the statement.
It is the latest safety-related incident involving a Boeing plane in recent weeks and months.
On Friday, a United Boeing 737 MAX plane rolled off a runway in Houston, the airline said. The 166 total passengers and crew aboard that flight were evacuated, with no injuries reported.
On Thursday, a tire fell off the landing gear of a United Airlines Boeing 777-200 that had just taken off from San Francisco International Airport. The tire landed in an airport employee parking lot and damaged several vehicles.
And days earlier, a United Boeing 737-900 from Houston to Fort Myers, Texas turned around after one of its engines burst into flames, in a harrowing scene caught on video by several passengers. No injuries were reported.
In January, an Atlas Air Boeing 747-8 cargo plane that took off from Miami made an emergency landing after suffering an engine failure that led to one catching fire.
And Boeing is facing criminal investigation for a major incident in January, in which part of the fuselage on a Boeing 737 MAX 9 Alaska Airlines jet blew off mid-flight.
