A United Airlines flight over the Atlantic has turned back and landed in Ireland because of what the airline called a "potential security concern".
In a statement, United Airlines said: "After assessing the situation our crew made the decision to divert to the nearest available airport".
They also confirmed that the plane and all the passengers are now being searched.
According to the American Airline's website, the flight was cancelled due to "security screening disruptions".
A source familiar with the matter said a written bomb threat was found onboard the aircraft, which was carrying 107 passengers, eight flight attendants and three pilots.
A plane flying from Europe to the United States has been diverted after a cryptic note hinting at a bomb was reportedly found scrawled on the wall in the aircraft's bathroom.
After passengers disembarked, police began taking handwriting samples in an effort to find out who wrote the message, the newspaper reported.
"We will work to get customers on their way to Chicago as quickly as possible", the statement went on to say. Baggage from the flight was examined as well.