City services in Zagreb immediately began cleanup operations following debris left by fans in the city center. The incident prompted a rapid response from “Čistoća,” Zagreb’s public sanitation company, to restore order. Details regarding the event that caused the mess were not provided in the source text, but the focus is on the efficient remediation efforts. The cleanup was completed promptly, demonstrating the city’s commitment to maintaining public spaces. No information was given about the extent of the mess or any associated disruptions. The quick action aims to return the city center to its normal condition. Further details regarding the fans and the reason for their gathering are currently unavailable.