Police in Prague, the capital of Czech Republic, have arrested more than 30 people after violence broke out ahead of tonight’s Europa Conference League final between West Ham and Fiorentina.

It is thought a group of West Ham fans were drinking in a bar in the centre of the city when they were attacked by large numbers of men dressed all in black.

As other West Ham supporters arrived on the scene, riot police moved in to keep the rival groups apart.

Czech police confirmed three people were injured and one policeman was also attacked.

They said in a statement: “Italy fans attacked West Ham fans in a bar in Rytirska Street, injuring three. One policeman was also attacked.

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“We have restricted the personal freedom of 16 people and we are currently investigating the whole incident.”

Around 20,000 West Ham fans are in Prague, the majority without tickets, for the final between the Hammers and Fiorentina at Slavia Prague’s Eden Arena.

Violence marred the end of West Ham’s semi-final second-leg victory over AZ Alkmaar in the Netherlands, when home supporters attempted to get at a group of the players’ family and friends in one of the main stands.

“There were five or 10 Italian guys running across the street, they had some weapons. They were attacking each other, there were a lot of fireworks going off and so much glass.

“Two or three English people were hurt, but that’s it,” an eyewitness told Sky Sports.

Outside the Tek’ila Tek’ila bar in the city centre, a burnt-out chair and broken glass were seen littered across the ground.

One West Ham fan, who did not want to be named, said “a large group” of Italian fans attacked the bar.

“About eight Italians walked past, swinging bands and chains,” he said.

“Five minutes later there was a big group that come down the road and attacked us.”

The man said five West Ham fans were injured.

He said: “Three of our mates were injured; out of all of this lot there were five. Three of them were our mates. They’ve gone to hospital.”

He added that one of his friends was “quite badly” injured with a “massive cut” on his head.

The Star