South Wales Police have confirmed they made several arrests during Poland's UEFA Nations League win over Wales in Cardiff on Sunday night.
Thousands of Polish fans descended on the Welsh capital for Sunday's game, creating a raucous atmosphere inside Cardiff City Stadium.
However, a section of visiting supporters have been roundly condemned for their use of pyrotechnics throughout the game. Flares were lit during the Polish national anthem, and again when the visitors scored the only goal of the contest, with one fan appearing to fire a flare or firework from the stands up into the sky.