World champions Germany began their bid to claim a record fourth UEFA European Championship title by beating Ukraine 2-0 at the Stade Pierre-Mauroy near Lille ©Getty Images

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Following violent clashes between England and Russia fans yesterday, it was encouraging to see supporters of Germany and Ukraine mingling in the build-up to the match ©Getty Images

Shkodran Mustafi's header set Germany on their way to victory ©Getty Images

Germany defender Jerome Boateng was forced to clear the ball off the line as Ukraine went in search of an equaliser ©Getty Images

Substitute Bastian Schweinsteiger put the game to bed in stoppage time ©Getty Images

Arkadiusz Milik scored the only goal in Poland's 1-0 win over Northern Ireland at the Allianz Riviera stadium in Nice ©Getty Images

Despite seeing their team lose, Northern Ireland's fans seemingly enjoyed their first-ever match at a European Championship finals ©Getty Images

Luka Modric's superb long-range volley got Croatia off to a winning start in Group D at the expense of Turkey ©Getty Images

Darijo Srna struck the crossbar with a free-kick as Croatia looked to score a decisive second at the Parc des Princes in Paris ©Getty Images

Turkey goalkeeper Volkan Babacan was called into action on several occasions ©Getty Images