West Ham fans in Seville violently clashed with Eintracht Frankfurt ultras on Wednesday night - despite the two sides not even playing each other in the Europa League.
Hammers fans are in the Andalusian capital to watch their side take on Sevilla, while Frankfurt defeated Real Betis 2-1 yesterday evening in a game that was brought forward 24 hours.
Worrying footage emerged late on Wednesday night of the two sets of supporters violently clashing in the centre of the city.
One clip shows Frankfurt fans arriving outside an Irish bar in the city where many West Ham fans were based - and there were glass bottles, sticks, bar seats and tables all throw in the melee.
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