Tyson picked up a corner flag bearing the Forest emblem and waved it in celebration in front of the 4,376 travelling Derby fans in the Bridgford End - an incident which the Football Association will investigate.
After Tyson's celebrations, Rams players Dean Leacock and Gary Teale confronted the striker for inciting the Derby fans behind the goal.
That caused the majority of the rest of both squads to rush over and get involved as stewards fought to keep supporters off the pitch.
A Football Association spokesman has said the organisation will be investigating the incidents "as a matter of urgency".
http://news.bbc.co.uk/sport1/hi/football/eng_div_1/8215157.stm