DUBLIN — A Lufthansa Boeing 747-8 bound for the United States was forced to declare an emergency and divert to Dublin Airport on Thursday after turning back mid-flight over Scotland.

Flight LH430 departed Frankfurt Airport at 11:00 CEST, scheduled for a nine-hour crossing to Chicago O’Hare International Airport. Approximately two hours into the journey, while cruising at 33,000 feet over Scottish airspace, the crew initiated a sharp U-turn just prior to the Atlantic track entry.

Shortly after turning back, the flight crew transmitted squawk code 7700—the international aviation signal for an emergency—to air traffic control. The aircraft, a Boeing 747-800 registered as D-ABYG, immediately began a descent toward Ireland.

UPDATESThe flight is diverting to Glasgow.After heading to Dublin, it looks plans have changed. The aircraft is now diverting to Scotland, holding 10,000 feet.Touch down on runway 05 at 13:24 local time, 3 hours and 21 mins after takeoff.The aircraft is now parked on remote stand of the airport due to a medical emergency on board.Refueling in progess.