Summary The trouble came after 17 Lazio fans were arrested following a fight outside Polish capital.
WARSAW (AFP) - Polish police on Thursday arrested a large group of Lazio supporters prior to a Europa League game between the Italian side and Legia Warsaw, said an AFP journalist at the scene.
"Stones were thrown at police who were escorting the supporters towards the stadium," a police spokesman told AFP.
Police then used force to arrest the supporters, numbering several dozen, with around 30 police vans involved in the operation.
The trouble came after 17 Lazio fans were arrested following a fight outside a hotel in the Polish capital on Wednesday evening.
Lazio need a win in the match at the Wojska Polskiego stadium to qualify for the knockout stages of the Europa League, while Legia are already eliminated.
