An explosion at the Mad Fox club early Friday morning was caused by a live hand grenade. There were no injuries reported in the incident, but it was followed up by another report later in the day of a hand grenade seen in front of the club's front door.
Amsterdam's mayor, Femke Halsema, ordered the club shut down, according to a statement from her office released late on Friday. The Spuistraat club is located underneath the luxury W Hotel in Amsterdam. It will be kept closed for an indefinite period of time to protect the peace.