A plane that was diverted to an airport in Scotland due to security fears, was afterwards allowed back in the air on Saturday.
Egyptair flight 985 from Cairo to New York landed at Glasgow Prestwick Airport after a handwritten note saying it would be set on fire was found in the toilets.
But after a search of the plane, police said it was allowed to continue its journey.
A BBC producer Nada Tafik said she saw a note apparently threatening to start a fire. The note also had a seat number written on it.
The Boeing 777 was escorted to Prestwick Airport, Ayrshire, by RAF Typhoon jets, where it landed at about 2.30pm BST on Saturday.
The aircraft was carrying 326 passengers.