Jan 27 (Reuters) - The National Transportation Safety

Board said on Monday it is investigating a United Airlines

flight on Friday from Lagos, Nigeria to Washington in

which a sudden aircraft movement led to injuries of passengers

and cabin crew.

The NTSB said the incident on United Flight 613 occurred as

the Boeing 787-800 was flying in Ivory Coast airspace and

aviation officials there delegated the investigation to the

NTSB.