An airline passenger claimed that a security guard threatened to arrest him because he was wearing a T-shirt showing a cartoon robot with a gun.
Brad Jayakody, 30, from London, said he was stopped from passing through security at Heathrow's Terminal 5 after his Transformers T-shirt was deemed 'offensive.'
The IT consultant was set to fly off on a business trip to Dusseldorf in Germany when he was pulled to one side.
Brad Jayakody wearing the Transformers T-shift which caused offence at Heathrow
Mr Jayakody said the first guard started joking with him about the Transformers character depicted on his French Connection T-shirt.
'We are investigating what happened to see if it came under this category.
'If it's offensive, we don't want other passengers upset.'