Liverpool and Sevilla supporters clashed inside the St Jakob-Park stadium prior to kick-off in the Europa League final.
Video footage of around 20-30 supporters punching and goading each other behind the goal in the section designated for Sevilla supporters emerged.
Riot police moved in swiftly to deal with the situation. Sevilla players were also pictured appearing to try and calm the situation by talking to their fans.
It quickly subsided after intervention from stewards, before police arrived to line the aisle between two sections and provide some form of segregation.
The scenes came ahead of kick-off in tonight's Europa League final.
There were concerns prior to kick-off about fan safety with around 26,000 Liverpool supporters understood to have travelled to the Swiss city of Basel, despite the club being allocated just 10,600 tickets for the game.
It's understood many Liverpool supporters have bought tickets inside the 38,512-capacity St Jakob-Park through unofficial channels and touts outside the stadium, making segregation between supporters impossible.
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