Germany’s exhibition soccer match against the Netherlands was canceled less than two hours before kickoff on Tuesday, becoming the second marquee game called off in two days in increasingly edgy Europe.

The cancellation of Germany’s home game against the Netherlands in Hanover came after the police found a suspicious object, The Associated Press reported. Hanover’s police chief, Volker Kluwe, told German television that there was “concrete evidence” of plans to detonate an explosive device in the stadium.

A stadium announcement told fans who had entered the Niedersachsenstadion — which seats more than 40,000 for international matches — to leave. The evacuation came after an earlier incident, also involving a suspicious package, caused a delay in the opening of the gates. The majority of the crowd had not entered when the order was given to empty the stadium.

German government officials, including the interior minister, Thomas de Maizière, said no explosive devices had been found inside the stadium and no arrests had been made. Mr. de Maizière said increasing signs of a credible threat of an attack had led to the cancellation, but he declined to elaborate.