A United Airlines flight from Africa to Washington D.C. had to turn around on Thursday after a "technical issue" caused "unexpected aircraft movement," the airline said.

A United Airlines jet was forced to make an emergency landing after plummeting mid-air following take-off. At least six people were injured after the plane jolted during the flight from Nigeria on Friday. The flight, which was heading from Lagos to Washington DC, had 245 passengers and 11 crew on board at the time.

New video shows frightening moments onboard a United Airlines flight bound for Washington, D.C., after what officials are calling a “technical issue” occurred.

A United Airlines flight bound for Puerto Rico made an emergency landing at Newark Liberty International Airport on Saturday morning, according to the FAA. The flight returned to Newark around 10 a.m.

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United Airlines said it was cooperating with U.S. and Nigerian investigators to determine what exactly happened on the flight.

A United Airlines flight from Nigeria to the US was forced to make an emergency landing in Lagos early Friday. The flight from Lagos to Washington D.C. turned back after the aircraft — a Boeing 787-8 — experienced a technical issue and "an unexpected aircraft movement,

The authorities in Nigeria said that the United Airlines plane had to return to Lagos, Nigeria, after the episode. Six people were treated at a hospital, officials said.