West Ham United fans have been caught up in riots in Zagreb ahead of their Europa League clash with Dinamo Zagreb this evening.

That’s according to Index, who report riots in the centre of the city last night between both sets of fans.

Reports in England, based on a police statement from Croatian police, reported today that six British nationals had been arrested after one Croatian was seriously injured and transferred to hospital.

Index back that up but add a little more detail, stating that there were ‘fan riots’ in the centre of Zagreb on Wednesday evening.

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They report West Ham had attacked two Croatian fans in Tkalčičeva Street in Zagreb, while elsewhere ‘bottles and mugs were flying’ on the terrace of an unnamed café elsewhere.

That led to one local being ‘seriously injured’ and transferred to the Sestre milosrdnice Hospital, although there is no mention of their status at this moment in time.

The newspaper also states that around 2000 fans are expected at Maksimir and have been gathering in the main square, but there is no mention of trouble on that front.

Hopefully, that remains the case for the rest of the evening, with West Ham’s return to Europe having not gotten off to the best of starts.