Tim Hewage, Sky News Online
Spanish football fans have clashed with police on the streets of Barcelona while celebrating their side's title win.
After FC Barcelona clinched the domestic league title, La Liga, thousands of supporters spilled onto the city's streets.
But the celebrations turned ugly in the early hours of the morning as fighting broke out between police and fans.
Riot police baton charged supporters and fired rubber bullets to disperse the crowds.
Fans responded by throwing bottles and stones and setting fire to advertising billboards
The rioting came after Barcelona finished three points ahead of arch-rivals Real Madrid.
After their 250-million euro shopping spree Real Madrid failed to bring a single title for the second successive season casting doubts on the future of coach Manuel Pellegrini.
Pellegrini said: "We can't say it's been a good season if we haven't won a title.
"It is not easy making a team with a new coach and players but I cannot evaluate my own work.
"I have one more year left on my contract and that's all there is to say."
Meanwhile, former Chelsea boss Jose Mourinho tied up the second part of a potential treble with Inter Milan by winning the Scudetto, the top Italian league championship.
A 1-0 win at relegated Siena sealed the team's fifth straight Serie A title.
Inter face Bayern Munich in the Champions League final in Madrid on Saturday.http://news.sky.com/skynews/Home/World-News/Barcelona-Champions-Spanish-Football-Fans-Riot-On-Streets-After-Barcelona-FC-La-Liga-Win/Article/201005315633494?lpos=World_News_First_Home_Article_Teaser_Region_4&lid=ARTICLE_15633494_Barcelona_Champions%3A_Spanish_Football_Fans_Riot_On_Streets_After_Barcelona_FC_La_Liga_Win