Uefa President, Michel Platini, has called on all of the governing body's member associations to apply a zero-tolerance policy towards racism.
The call follows incidents involving Dani Alves of Barcelona and AC Milan's Kevin Constant, who had bananas thrown at them from the crowd in games at Villarreal and Atalanta respectively.
The Uefa Executive Committee strongly condemns all acts of discrimination and I was outraged by the incidents which took place in recent weeks," Platini said following separate meetings of the Executive Committee and Professional Football Strategy Council (PFSC) in Turin on Tuesday.
"It is unacceptable for anyone to be racially insulted or abused inside our stadiums, and we simply cannot tolerate it.
"We call on all our member associations and stakeholders to apply a zero-tolerance policy against all forms of discrimination and to follow the Uefa guidelines in sanctioning all guilty parties.
"Our statutes were recently amended to ensure all Uefa member associations adopt effective policies to eradicate racism."
The Uefa has already agreed that all incidents of racism must be punished by partial stadium closure for a first occurrence, and by full stadium closure and a fine of €50,000 for a second such offence by supporters.
