A powerful explosion ripped through a 24/7 gym in Amsterdam Nieuw-West overnight, resulting in multiple arrests and the seizure of several vehicles. Seven people were injured, two critically, and emergency services are still working to locate potential victims believed to be trapped under the rubble. Firefighters spent hours extinguishing a blaze that erupted following the explosion and evacuated nearby residents. Authorities are cautiously demolishing the building with a crane to facilitate the search. The cause of the explosion remains unknown, and investigations are ongoing, preventing immediate access for detectives. Residents of adjacent buildings are not expected to be able to return home for at least another night, with emergency operations anticipated to continue until at least 6 PM local time.