Sunday’s Singapore Grand Prix was interrupted when a fan was found to have invaded the track during the grand prix, forcing officials to send out a safety car and slow the field down.
On lap 37 of the race, the stewards deployed the safety car despite there being no debris on track or cars in trouble, prompting confusion for those watching.
Race leader Sebastian Vettel quickly radioed his Ferrari team, saying: “There’s a fan on track!” to alert them to the intruder.
Track invaders are rare in F1, but this does mark the second incident of the season. During practice for the Chinese Grand Prix earlier this year, a fan ran across the main pit straight and to the garages, believing that his ticket to watch the session also included a drive in a Ferrari F1 car.