A 16-year-old's fitness watch forced a flight with 190 passengers on board to turn around as police searched the aircraft - the FBI has launched an investigation into the incident

A United Airlines from to Mallorca, Spain, was forced to make a diversion due to a security alert

Flight 236 left Newark Liberty International Airport on Saturday night en route to Palma de Mallorca but reversed course about an hour after takeoff.

A 16-year-old's fitness watch forced a flight with 190 passengers on board to turn around as police searched the aircraft - the FBI has launched an investigation into the incident