This is the shocking moment a 200 sq ft high street billboard went up in flames.br The huge hoarding, positioned next to a Burger King in Middlesbrough, was given the ‘flame grilled’ treatment, much like one of the chain’s burgers.br And it sported a Doritos tortilla chip ad before being left charred - alluding to a collaboration between the two brands.br Locals were left stunned by the flames, with hundreds gathering to take pictures and videos which have spilled onto social media.