UEFA has charged Manchester City in relation to fireworks being set off during their Champions League quarter-final victory over Paris Saint-Germain on Tuesday.
Kevin De Bruyne scored the only goal during the Etihad Stadium leg, securing a 3-2 aggregate win for Manuel Pellegrini s side.
Following De Bruyne s goal a blue flare was visibly let off in the ground s south stand.
A statement released by UEFA read: Disciplinary proceedings have been opened following the UEFA Champions League second-leg quarter final between Manchester City FC and Paris Saint-Germain (1-0) played on 13 April in England.
Charges against Manchester City FC: Setting off of fireworks – Art. 16 (2) of the UEFA Disciplinary Regulations.
City s case will be dealt with by the UEFA Control, Ethics and Disciplinary Body on May 19 and it is not the first time that fan behaviour at a Champions League match this season has left them at odds with European football s governing body.
Following October s 2-1 victory over Sevilla, City were charged in relation to their fans booing pre-match Champions League anthem although UEFA eventually decided against taking any action.
The booing, a protest by fans relating to the club s 2013 punishment under financial fair play regulations and the presence of CSKA Moscow followers at a 2014 match against City that officially took place behind closed doors due to racism offences by the Russian team s supporters, has continued unabated and was particularly loud ahead of the PSG match.