Manchester United manager Jose Mourinho has questioned Manchester City's "behaviour and education" following their derby day dressing room scrap at Old Trafford, blaming the incident on differences in "diversity".

Players and staff from both sides were involved in a major incident following City's 2-1 win at Old Trafford on Sunday (10 December) – said to have been prompted by City's celebrations and music from inside the away dressing room.

Mourinho is said to have tried to enter the dressing room to object, clashing with City goalkeeper Ederson before a 30-man melee ensued, with the FA now investigating the incident.

Both Mourinho and Pep Guardiola addressed the press for the first time since the incident on Tuesday ahead of respective Premier League matches against Bournemouth and Swansea City, with the City boss insisting his side's celebrations were "definitely" not over the top.

His United counterpart was initially reluctant to discuss the incident, despite being informed of Guardiola's comments, which were made just minutes before United's pre-match press conference began.

But he eventually broke his silence, telling reporters: "He says, he says, I am not here to comment on his words. The only thing I can say is that for me it was just a question of diversity, diversity in behaviours, diversity in education, just that and nothing more than that."

A defeat on Sunday saw United fall 11 points behind league leaders City – who also brought an end to a 40-match unbeaten run at Old Trafford. With Bournemouth coming to Old Trafford, Mourinho is now looking for a response.

"When you lose you probably have a little bit more desire to win it," Mourinho said. "Nobody wants to lose once. Nobody wants to lose twice. Every team in the world, when you lose a match, the next one you have a little bit extra to give."

Jose Mourinho
Mourinho and Guardiola embraced after the final whistle before things turned ugly in the dressing rooms. Getty