About 200 supporters of Paris Saint-Germain and Chelsea fought in a city center street prior to their teams' Champions League quarterfinal match on Wednesday.
#INSERT type:image caption:Chelsea and PSG fans clashed in the streets before the teams met on the pitch. END#
PSG's director of security Jean-Philippe d'Halliville said that some 100 fans from each side -- including former members of PSG's notorious and now disbanded Kop of Boulogne hooligan group -- fought for up to three minutes before riot police intervened.
He did not give further details on whether there were any arrests or injuries. BFMTV reported two fans were hurt.
A group of Chelsea fans stampeded down a street while making Nazi salutes and smashing cafes and shops, according to The Guardian.
The also chanted racist abuse and threw bottles at bystanders before running from the riot police.
Despite tight security around the Gare du Nord train station and another known hangout for PSG troublemakers, the violence broke out on Rue Saint-Denis, near to the popular Chatelet area about two hours before the game.
Trouble also marred PSG's home match against Bayer Leverkusen last month.