A United Airlines flight from Rome to Chicago was diverted to Ireland over a security issue, the airline told CNBC.
United flight 971, which departed from Rome just after 10:30 a.m. local time, was scheduled to land at O'Hare International Airport at around 2 p.m. CST.
After roughly four hours in the air, the flight was diverted to Shannon Airport in Ireland "following a potential security concern," United Airlines said in a statement.
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"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," the statement continued.
Further details were not immediately available.
Check back for updates on this developing story.