Accident kills spectator in Legends Boucles rally, ending event early

Legends Boucles, a rally in Belgium with historic cars, has ended early after an accident on the second stage of the day killed a spectator. What a heartbreaking development. I understand that danger is part of the spectator tradition in rally, but geez.

Jos Verstappen was driving a BMW M3 E30 in the event; he was not involved in the accident.