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PARIS – The Latest from soccer's European Championship (all times local):
German police say they have arrested six Russian soccer hooligans after an attack on a pair of Spanish tourists and their companion at the square in front of the cathedral in Cologne.
Police were investigating whether the suspects were involved in other disturbances during the European Championship in France.
A statement from Cologne police says five of the men were immediately arrested after the incident Thursday evening by plainclothes and uniformed police. The suspects were drunk and found to have tickets to Russia's matches as well as face masks and mouth guards that police regarded as typical hooligan gear.
A sixth suspect fled the square but was arrested in the departure lounge at the Cologne-Bonn airport before he could board a flight for Ibiza, Spain.
UEFA's tournament director says some surfaces at the European Championship have not been good enough.
Martin Kallen says recent heavy rain is a reason the grass in Marseille is not as good as UEFA wants.
Stadiums which stage non-soccer events — including the Stade de France and in Lille — have longer-standing issues with quality.
Kallen says "we have problems and we do our utmost."
In Marseille, new turf was laid a month ago but Kallen says "it could not take enough roots" because of rain.
A new roof at the renovated Stade Velodrome also deprives the surface of sunshine and drying winds.
Kallen says playing surfaces are better at stadiums "where only football takes place," like Parc des Princes in Paris.