A person was injured in a single-vehicle crash on Market Street Thursday evening. The car hit a tree at high speed, and the driver had to be extricated by fire fighters, Chattanooga Fire Department posted to its Facebook page. The person was taken to a local hospital, and first responders are hoping for a full recovery. The cause of the crash is still under investigation by the Chattanooga Police Department. Officers estimated the car was traveling 60 to 70 mph when it hit the tree.