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

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.

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

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.

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

Several passengers onboard the United Airlines flight UA613 sustained injury as the aircraft made an emergency return to Lagos. The Washington bound flight with 245 passengers, eight flight attendants and three pilots made direct return to the Murtala Muhammed International Airport,

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.

Passengers aboard United Airlines Flight 613 endured a terrifying ordeal less than two hours into their journey from Lagos to

After diverting, United Airlines Flight UA613 landed safely back in Nigeria. Four passengers and two flight attendants were taken to hospital with injuries but have been discharged, United Airlines said in a statement. The Federal Airports Authority of Nigeria (FAAN) said an additional 27 passengers and five crew members sustained minor injuries.

Image via Shutterstock It was a chaotic scene after a United Airlines flight touched down in Africa. The Boeing plane had to make an emergency landing at the airport. This comes after the flight suddenly plunged downward in mid-air.

United Airlines has said it is working with aviation authorities in Nigeria and the United States to ascertain the cause of its recent incident.

A United Airlines flight UA613, outbound from Murtala Muhammed International Airport, Lagos,  declared an emergency and returned to