The Defqon.1 hardstyle festival in Biddinghuizen, Netherlands, has been cancelled and attendees are being asked to leave the campsite following a red weather alert issued by the Royal Netherlands Meteorological Institute (KNMI). Organizers initially reduced visitor numbers but ultimately decided to end the festival prematurely due to the severity of the warning, which applies to the Flevoland province. The decision impacts tens of thousands of festival-goers, many of whom were camping on site. While the campsite and essential facilities will remain open for the day to allow for travel arrangements, the remainder of the festival weekend is cancelled. Q-dance, the festival organizer, stated the decision was made to prioritize the safety of visitors and staff. Full refunds will be issued to all ticket holders, with details to be announced after the weekend. Organizers expressed deep disappointment over the cancellation.