...who proceeded to talk themselves into an arrest, per the London
Evening Standard:-
It is believed a passenger on the flight allegedly threatened to blow up the plane after other passengers tried to intervene in a row he was embroiled in. Murtaza Ali Shah, a journalist, said he had spoken to a friend on board the plane, Fakhir Iqbal, a political activist, who was sitting behind the man who made the threat. Mr Shah said his friend told him: "Two guys started a row with a girl and lots of other people. Some people tried to calm them and asked them not to be rowdy and abusive. Fakhir told them to calm down. They said 'don't bloody speak to us or we will blow up the plane'. The crew came and spoke to them and they were openly threatening the staff. Fakhir went to other crew members and told them they were making threats."
Two men quizzed on mid-air 'fight' | London Evening Standard