Another disturbing racism allegation in the racing world ... Sonoma Raceway officials claim they, too, found a noose at their track over the weekend, and cops are now investigating.
According to officials at the legendary California track -- which plays host to NASCAR races annually -- a piece of twine tied in the shape of a noose was found hanging from a tree near the property on Saturday.
"To have something like that show up on our property is disgusting,” the raceway's general manager, Steve Page, told NBC Bay Area.
Page added he went to the Sonoma County Sheriff's Office over the incident .