UPDATE 1-United flight diverted en route to Chicago on 'potential security concern'

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NEW YORK, June 11 (Reuters) - United Airlines flight UA971 from Rome to Chicago was diverted to Shannon Airport in Ireland, following "a potential security concern," the airline said on Monday.

"Additional security screenings will be performed on all customers and baggage, and we will work to get customers on their way to Chicago as quickly as possible," United said in a statement.

United declined to detail the specifics of the incident. (Reporting by Alana Wise, Editing by Rosalba O'Brien)