RAW VIDEO- 50 People Injured After A Boeing Had A 'Techincal Event' That Flung Passengers Into The Ceiling

SYDNEY -- At least 50 people were injured Monday by what officials described as a "strong movement" on a Chilean plane traveling from Sydney to Auckland, New Zealand.

LATAM Airlines said in a statement that there was "a technical event during the flight which caused a strong movement." It did not elaborate on what happened.

Passengers were met by paramedics and more than 10 emergency vehicles when the flight touched down in Auckland.

About 50 people were treated at the scene for mostly mild injuries, with 13 taken to a hospital, an ambulance spokesperson said.

One patient was believed to be in serious condition.

A passenger on board the flight called Jacinto, who spoke with CNN affiliate RNZ, said there was a "mid-air drop."

"People flew through the cabin," he said. "People got pretty injured."

Passengers said a number of people were not wearing seatbelts when flight LA800 suddenly dropped.

"People were really scared as well."

Another passenger, which RNZ named as Valentina, said that the plane "just stopped," and that "people were flying around."

"Blood was on the ceiling, people [flew] and broke the ceiling of the plane," she said, adding that she was "very scared" to get on a plane again.

Valentina suffered minor injuries but was treated by medical crew once the plane landed.