BARCELONA (REUTERS) - La Liga champions Barcelona condemned the crowd trouble that occurred before their game at Alaves on Saturday (Feb 11) when a supporter was taken to hospital after around 70 people were involved in violent clashes.

"FC Barcelona regrets and condemns incidents that occurred today in the city of Vitoria before the game against Deportivo Alaves," said a statement from Barca.

"The club strongly rejects any violent conduct and hopes that the necessary authorities will be able to identify those responsible for these incidents as soon as possible."

A video published on the website of Spanish daily Marca (www.marca.com) showed groups of supporters, some of whom were carrying metal bars, fighting outside a bar in the university area of the city of Vitoria, throwing chairs and tables.

Marca reported that 50 Alaves fans had attacked a group of 20 Barcelona supporters before the game, which Barca won 6-0.

Local police arrested a 19-year-old male and one supporter was in a stable condition after being taken to hospital with head injuries.

Alaves also released a statement condemning the incidents.

"Deportivo Alaves profoundly condemns the violent incidents that took place on the morning of Feb 11 in the university area between supposed fans of Alaves and Barcelona," said the Basque club.

"The club puts itself at the disposition of the authorities and in the case that any of the people are involved are season ticket holders, will take appropriate measures with these people."