AC Milan forward Mario Balotelli has been fined 10,000 ($13,300) by the Italian league for making a vulgar gesture at Inter Milan fans while walking off the pitch after Sunday's derby.
Meanwhile, Inter was fined 50,000 ($66,500) for racist chants and insulting banners held aloft by its fans directed at Balotelli, who is of Ghanaian descent.
Milan was also fined 10,000 ($13,300) for an insulting banner that its fans unveiled.
In the second half of the match, which ended 1-1, Balotelli held a finger to his mouth toward Inter fans, signaling for quiet.
Inter supporters also waved inflated bananas and whistled at Balotelli.
Balotelli played for Inter from 2006-10, helping the club to a treble in 2010. He already has four goals for Milan after joining from Manchester City last month.