557 'violent supporters' arrested so far at Euro 2016 (The Associated Press)

A total of 557 ''violent supporters'' have been arrested so far at the European Championship, France's interior minister said Monday. The most visible violence at Euro 2016 occurred in Marseille in the opening days of the monthlong competition when England fans, Russia supporters and local youths clashed with each other and French riot police. ''With the exception of the first match in Marseille, which led to violence in the city center, the measures taken immediately after this match in liaison with UEFA, but especially with the countries from which these supporters were coming, have enabled us to avoid new acts of violence, new fights in the center of the host cities,'' Cazeneuve said.