Rotterdam’s mayor has invoked his emergency powers for large parts of the city centre on Sunday and alcohol sales have been banned in the area around the station in an effort to head of more trouble involving Feyenoord football supporters.

Last Sunday 100 people were arrested as football fans clashed with police after Feyenoord failed to take the Eredivisie title. Feyenoord are now one point ahead of Ajax ahead of Sunday’s last competition match.

Mayor Ahmed Aboutaleb told reporters last weekend’s riots had been largely fueled by alcohol and drugs.

Officials have also set aside special areas where fans can watch the match on giant screens and celebrate, if Feyenoord take their first league title since 1999.

In total, 37,000 Feyenoord fans who don’t have tickets for the Kuip stadium will be able to watch the match against Heracles on outdoor screens.

Meanwhile, six men wanted by police in connection with the riots have turned them selves in after their photographs were released to the media. A seventh man was recognised by the police and has been arrested.