A significant collapse at a gym in Amsterdam has prompted a large-scale rescue operation, with authorities fearing individuals remain trapped beneath the debris. The incident occurred earlier today, causing extensive damage to the building and triggering an immediate emergency response. Firefighters and specialized search and rescue teams are currently working to locate any potential survivors, utilizing heavy equipment and sniffer dogs. The cause of the collapse is currently unknown and under investigation, though initial reports suggest a possible structural failure. Authorities have cordoned off the area surrounding the gym, and are urging the public to stay away to allow emergency services to operate effectively. The number of potential victims remains unconfirmed, but officials are proceeding with the assumption that people may be inside. The operation is expected to continue throughout the night.