ANNA, Texas – A fatal crash involving six vehicles shut down U.S. 75 in the Anna area of Collin County on Monday, police said. The crash happened around 11:30 a.m. on northbound U.S. 75 near Rosamond Parkway, according to the Anna Police Department. Police were diverting traffic off 75 to Rosamond Parkway, and officials were asking drivers to find alternate routes through the area.