A flight from Scotland to Spain on Saturday turned into a bloody beatdown as two Ryanair passengers started brawling for an unknown reason.

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Video captured of the incident shows fellow travelers pleading with the pair to stop, while flight attendants attempt to pull them apart. When it was all over, one of the men was seen with his face covered in blood.

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Stephen Griffiths, who was on board, tweeted photos of the overhead luggage compartment, noting, "Was still blood in the cabin when we got on for the flight home."

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Police arrested the men on arrival, with the airline issuing a statement saying, "We will not tolerate unruly or disruptive behaviour at any time and the safety and comfort of our customers, crew and aircraft is our number one priority."