120 Italian Lazio supporters have been detained in Warsaw on Thursday in the aftermath of their team’s Group J Europa League encounter against Legia Warsaw.
Local police have confirmed that they were forced to restrain fighting taking place between the two sets of fans outside a hotel the night before the match on Wednesday in the Polish capital.
Knives were later discovered inside hotel rooms that were being used by the Italian supporters.
Polish fans were arrested after being responsible for breaches of public orders in the corresponding fixture in Rome.
Lazio went on to cement their place in the final 32 with a 2-0 win courtesy of goals on either side of the break from Brayan Perea and Felipe Anderson.
The win will take some of the pressure mounting on Lazio boss Vladmir Petkovic who has been linked with a move away from Italy in recent days.