German police closed the Oktoberfest fairgrounds on Wednesday morning following a bomb threat from the suspected perpetrator of an explosion in northern Munich, city officials said. 4 Police and emergency personnel stand in front of the Munich Oktoberfest beer festival grounds on Oct. 1, 2025. Officials discovered the bomb threat to Oktoberfest in a letter from the alleged perpetrator. 4 A burnt-out van is covered in foam after being extinguished by firefighters in Munich, Germany, on Oct. 1, 2025. 4 A police officer walks at the Oktoberfest area that stays closed after a bomb threatening in Munich, Germany, Wednesday, Oct.1, 2025.