Looting has been reported throughout the archaeological site, including in the Temple of Bel complex, the stately colonnaded avenue, the Camp of Diocletian, and the Valley of the Tombs.
"This is possibly the most deluded measure to come from Europe since Diocletian tried to fix the price of groceries across the Roman Empire, " claimed Mr Johnson, adding that the decision was likely to further strain the relationship between the UK and Brussels.