Five men, aged between 26 and 39, were arrested after a burst of arms at Orchard Road on April 6.
Several Stompers alerted Stomp of the fight videos that were circulating on social networks.
In one of the clips a man can be seen driving a metallic rod and throwing it in the other men.
Another man is coming out of a car with a knife in his right hand.
The police said in a statement on Friday (April 12) that they were alerted about the fight over Orchard Road on April 6 at 9:20 p.m.
"Upon arriving, the police arrested two men, 26 and 35, in the place," the police said.
The officers of the Criminal Investigation Department and the Tanglin Police Division established the identities of the remaining three men and later arrested.
The case was classified as a riot with deadly weapon.
The maximum punishment for the riots with a deadly weapon is the jail of ten years, and the offender can also be fallen.
The statement added: "The police are committed to keeping Singapore safe, and we will not spare any effort to ensure that offenders are brought to justice and face the worst part of the law."