Liverpool fans complained of heavy-handed policing outside the Stade de France before the Champions League final, as thousands were delayed in entering the stadium.
Large numbers of supporters were still outside the venue shortly before the scheduled kick-off time of 21:00 CET, as Liverpool prepared to take on Real Madrid.
Kick-off was pushed back by an initial 15 minutes and subsequently to 21:36, with the match only getting under way after an on-pitch performance by pop singer Camila Cabello.
European football's governing body, UEFA, put the delay down to "security reasons".
British broadcaster BT Sport said Liverpool fans had complained of heavy-handed policing outside, claiming tear gas had been used.
BBC Radio Merseyside breakfast show presenter Paul Salt wrote on Twitter at 21:13: "Disgraceful this from @ChampionsLeague been waiting an hour and a half to get in and no sign of being successful.
"Gates closed so no way of gaining entry. We’ve just been peppered sprayed yet no sign of crowd disorder where I am. Crowd building up outside. Joke"
He added, five minutes later: "One gate now open this is ridiculous."
Both sides had already completed their warm-ups by the time kick-off was first delayed and had made their way back to the dressing rooms. They returned to the pitch for a further warm-up shortly after 21:05 CET.
Spanish journalist Guillem Balague said there were scenes of "extraordinary chaos", later adding: "There are plenty of people getting in with no tickets. Shambles and dangerous."
Local police in Paris issued a warning to supporters of both clubs before kick-off, stating: "Do not force entry to the Stade de France."
The Guardian reported a further statement from police, which read: "Supporters attempted to penetrate the stadium. They forced their way through the first filter. The screening at the Stade de France is watertight."