Speedway Boulevard was closed in both directions between Swan Road and Santa Rosa Avenue late Wednesday morning due to a structure fire at a business in the 4900 block, according to Tucson Fire Department. TFD spokespeople shared that the first unit responded at 11:06 a.m., and that the fire was under control by 11:30 a.m. Speedway was closed in both directions during the incident to accommodate the water supply. TFD says westbound Speedway between Swan and Santa Rosa has reopened as of about 12:30 p.m. The cause of the fire is under investigation, according to TFD.