Emergency medical services in France and Luxembourg are provided by a mix of organizations under public health control, with the lead taken by a central control function called SAMU, which stands for Service d'Aide Médicale Urgente or Urgent Medical Aid Service. This central hub is supported by resources including first response vehicles or ambulances provided by the fire service or private ambulance services with or without a physician-led car provision from SMUR (Service Mobile d'Urgence et Reanimation – literally translated as Mobile Emergency and Resuscitation Service) which are "mobile intensive care units" (MICU) that have one or more physicians on board.