UEFA has opened disciplinary proceedings against Copenhagen after the Danish club's fans set off fireworks during their 1-0 Champions League defeat at Leicester.
European football's governing body has been cracking down on the use of fireworks, flares and smoke bombs by supporters, with Celtic, Liverpool and Manchester City among the clubs recently fined or warned for breaching regulations on pyrotechnics.
A statement posted on UEFA's official website said Copenhagen had been charged for 'the setting off of fireworks - article 16 (2) of the UEFA disciplinary regulations' on Tuesday night.