Leicester took control of their Europa League destiny with a 3-1 victory over Legia Warsaw on Thursday night, but the game was marred by crowd problems at King Power Stadium.
In the stands, Legia supporters were embroiled in a second half battle with the police as they tried to reach Leicester fans, having already set off several flares.
The rocket wall created a smoke screen around the ground.
At this point, around 100 supporters tore the net between them and home supporters, with police forced to intervene.
There were clashes between Legia fans and the police, but ultimately they couldn’t make it to the home section.
In the game itself, the Foxes took the lead after just 11 minutes.
Harvey Barnes’ mad rush ended when the winger found himself in a bind, but he got a stroke of luck and the ball ricocheted to Patson Daka at the edge of the area for the Zambian to break through expertly Cezary Miszta.
It made history when Daka became the Foxes’ European top scorer with his fifth goal of the competition.
Legia, who fell to Ekstraklasa’s second bottom after seven straight losses, was a compliant victim and Jjames Maddison added a second after 21 minutes.
The midfielder recovered Ademola Lookman’s pass in the box and, after dodging a lackluster defense, shot from 12 yards.
Yet Leicester’s tendency to self-destruct this season threatened to derail them five minutes later when Wilfred Ndidi unnecessarily manipulated the surface.
Kasper Schmeichel saved Emreli’s penalty only for Mladenovic to cover up the rebound – but it was only a blow to the Foxes who made the game safe before the break.
Seven minutes later, Ndidi atoned for his mistake when he took advantage of a miserable defense from Legia to peek into Maddison’s corner.
It was decisive and the Foxes played the second half with a certain comfort.