Nijmegen police have arrested a man following a fatal shooting that occurred Tuesday evening near the celebrations for the annual Vierdaagse (Four Days Marches). The incident took place just outside the designated event area, prompting a large police response. Details surrounding the shooting remain limited, but authorities confirmed one person died at the scene. The arrested man is currently being held for questioning as investigators work to determine the motive and circumstances of the shooting. Authorities have assured the public that the event area itself remains secure and the festivities are continuing as planned. The investigation is ongoing, with police appealing for any witnesses to come forward with information. This incident casts a shadow over the normally joyous Four Days Marches event.