The Latest from soccer's European Championship (all times local):

___

11:10 a.m.

German police are appealing for people to come forward with video recordings of violence involving suspected German hooligans before their country's opening European Championship match in Lille.

The Federal Criminal Police Office on Tuesday called for witnesses to submit material via its website at http://www.bka-hinweisportal.de/index.pl?lang=en and said the portal will remain in place for other games at the tournament.

Authorities have said that two people were slightly injured in Lille on Sunday during violence involving supporters from Germany and Ukraine. The incidents took place hours before Germany beat Ukraine 2-0 in the northern city.

___

11 a.m.

French authorities say a 2,400-strong security force is being deployed in Lens as the town prepares for an influx of 40,000 to 50,000 England and Wales fans for Thursday's European Championship game.

The policing operation in Euro 2016's smallest host city and its 35,000-capacity stadium has been intensified after clashes involving England and Russia fans around their opening Group B game in Marseille.

Regional administration head Fabienne Buccio says 1,200 police officers and the same number of private security guards will be in Lens, whose population can fit in the Stade Bollaert-Delelis.

Police will be at the stadium to help separate fans. UEFA acknowledged there were segregation problems at Marseille's Stade Velodrome.

Buccio says supermarkets around Lens will be banned from selling alcohol on Wednesday and Thursday.