After Forest had won a penalty shoot-out to secure their path to the last four, both sets of players were involved in a melee, with stewards forced to run onto the City Ground pitch to intervene.
Forest playmaker Morgan Gibbs-White, playing against his former club, appeared to be in the thick of the action, having celebrated his side’s win in front of travelling supporters who had booed him.
The FA will review the referee’s report when it arrives and video footage but a charge would appear highly likely.
Home boss Steve Cooper did not want to discuss the issue but said it had calmed down by the time players got into the tunnel.
‘I haven’t had a chance to assess it and I am not sitting on the fence too much,’ he said. ‘I don’t want to say something because I am not aware of what happened.’
An ill-tempered game saw six players pick up yellow cards – four from Wolves – while visiting manager Julen Lopetegui also had his name taken.
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