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Man decapitated as severed head is 'covered in Arabic writing' and hung on a fence next to Islamist flag at factory in France after terrorists storm building and set off 'gas bomb' explosions."
Shocking attack took place at the headquarters of American-owned Air Products close to Lyon in southern France.
Two men burst through the factory gates in a car, setting off small 'gas bombs' and injuring factory workers.
Murder victim's severed head was said to have been covered in Arabic writing and left hanging on a fence.
It is not yet clear whether the terrorists killed the man elsewhere and transported his body to the factory.
30-year-old man 'known to security services' was arrested at the scene, telling officers he was a member of ISIS.
News Radio report said the attacker was seen carrying an ISIS flag.
