Police were called to the scene at around 3.30am after one person sustained a stab wound to the arm and another suffered a head injury. Both were taken to hospital for treatment.
Several witnesses were questioned by the police, a knife was seized, and one suspect was arrested and brought before the examining magistrate.
On Monday, the police launched a witness appeal to encourage people who know something about the brawl to come forward either by calling them at +352244401000 or via email at police.luxembourg@police.etat.lu.
