London Fire has responded to a blaze at a building with previous fire code violations. Crews responded to reports of a structure fire in the 700 block of Dundas Street. When they arrived, they saw smoking flames along the main floor of the building. The flames were contained to the main floor, and crews were able to extinguish the fire. Dundas Street was closed between Elizabeth Street and English Street, but has since reopened. The building at 745 Dundas Street has been given several fire code violations.