Nottingham Forest and Derby County have been charged by the Football Association.
The charge comes after skirmishes broke out between players in the 96th minute of Saturday's East Midlands derby, as well as after the final whistle was blown by referee Tim Robinson.
In a statement, an FA spokesperson said: "Nottingham Forest FC and Derby County FC have been charged with two breaches of FA Rule E20.1 following their EFL Championship match on Saturday 22 January 2022.