A 21-year-old man was arrested after climbing onto the roof of during the Euro 2024 match between Germany and Denmark on Saturday evening.
According to local police, the man, who hails from Osnabruck in north-west Germany, has been apprehended.
There is currently no indication that his actions were aimed at endangering spectators at the Westfalenstadion, home to Borussia Dortmund.
Authorities deployed a helicopter on Saturday to illuminate the roof in an effort to locate the man, who had been seen by other spectators climbing inside the stadium.
The match was briefly halted in the 35th minute due to a thunderstorm, but Germany’s 2-0 victory ensured their advancement to the quarter-finals.