Ferrari is considering an appeal that could put Sebastian Vettel's Formula One title at risk.

Video from Sunday's season-ending Brazilian Grand Prix appears to show that Vettel passed a Toro Rosso car while there was a yellow caution light lit. If a rules breach is proven, Vettel could be hit with a 20-second penalty, which would move him from sixth to eighth place in the race and give Ferrari driver Fernando Alonso the F1 title by one point.

Ferrari spokesman Luca Colajanni tells The Associated Press that "we're looking at the video. We have until tomorrow to file an appeal."

One of the videos was taken from a camera on Vettel's Red Bull car.

Alonso finished second in the race, but Vettel won the title by three points.