Falkirk Football Club has pledged to take action against any Falkirk fans involved in a brawl before last Saturday’s match in Hamilton.
The incident saw a police helicopter hovering above the town’s New Douglas Park during the first half of the 1-1 draw.
Five males aged 21, 20, 19, 18 and 16 - reportedly Falkirk fans - were arrested, along with four Hamilton Academical supporters, after a scuffle broke out in John Street.
This morning, officers from the national Football Co-ordination Unit for Scotland arrested nine young men in the Falkirk area.
They were all aged 15 to 19 years.
These arrests followed a retrospective investigation carried out by FoCUS officers, who were assisted by colleagues from Central Scotland Police.
A spokeswoman for Strathclyde Police confirmed the alleged incident involved fans from both clubs.
Falkirk FC general manager David White said: “The club don’t want anything to do with this kind of behaviour.
‘‘As far as I’m aware this incident happened outside the ground before the match.
“If the police do get back to us and confirm these people were in fact Falkirk fans then we will take action against them.
‘‘We can then give them a written warning or withdraw their season ticket - the action we take will depend on the seriousness of the offence.”