Six people were arrested when thousands of Celtic fans descended on Glasgow to celebrate their Scottish Premiership win.
Police say there was an "unacceptable level of anti-social behaviour" but no serious incidents.
In a statement issued this morning Glasgow commander, Chief Superintendent Mark Sutherland insists his officers worked to minimise disruption with a "proportionate policing plan".
Fans gathered into the night after their team beat Motherwell 6-0 earlier in the day.
Chief Superintendent Sutherland said: "Police Scotland is a human rights-based organisation that puts our values of integrity, fairness, respect and a commitment to upholding human rights at the heart of everything we do.
“This afternoon thousands of Celtic supporters gathered in the area of Glasgow Cross to celebrate their team’s achievement.
"A proportionate policing plan was in place which facilitated the gathering, prioritised public safety and sought to minimise disruption to businesses and communities.
“While there was an unacceptable level of anti-social behaviour and littering there were no serious incidents or disorder.
"There were some outbreaks of minor disorder and our officers acted swiftly and robustly to prevent escalation and protect safety. Over the course of the evening there were six arrests for offences including assault and acts of public disorder. A further four people were issued with fixed penalty notices."
