Six were injured on a United Airlines flight from Lagos to Washington after the plane had a technical issue that caused an "unexpected movement."

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

Nearly 40 people were injured when a Boeing 787-800 plane suddenly lost altitude during a United Airlines flight from Lagos, Nigeria, to Washington, D.C., early Friday, officials said.

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

A flight to Washington, D.C., returned to Nigeria after “unexpected aircraft movement” caused injuries, United Airlines said. A statement from United emailed to The Hill on Monday said that one of its flights headed for Washington,

The plane headed back to Nigeria after experiencing "unexpected movement" mid-flight on Friday, Jan. 24, according to multiple reports

The U.S. National Transportation Safety Board (NTSB) is investigating a United Airlines flight incident that led to passenger and crew injuries following a sudden aircraft movement. The flight, en route from Lagos to Washington D.

Dozens of passengers sustained injuries after a Washington-bound United Airlines flight made an emergency return to Lagos for "technical" reasons.

During a flight from Lagos to Washington, D.C., a Boeing lost 300 meters of altitude. Almost 40 people were injured in the subsequent emergency landing.

A United States flag carrier, United Airlines flight UA613, outbound from Lagos to Washington, has declared an emergency and returned to Lagos.

In an update, Nigerian officials said an additional 27 passengers and 5 crew members suffered minor injuries in the incident. In all, 38 were hurt.