the UGA 10 yard line. Before next play (UGA ball) could happen, UT fans who didn't like the call throw bottles and trash on the field. Play stops as UT sends a bunch of people to clean up the field. During the delay, officials review the call and overturn the pass interference. Result is UT ball on GA 10. Fans who stopped the game got what they wanted.
Tough situation because it was the PI should not have been called - but the fans threw a tantrum to get what they wanted.