Kylie and Kendall Jenner, as well as Kylie and Travis' daughter Stormi, escaped Astroworld Festival without suffering any injuries.
The 24-year-old make-up mogul and Kendall, 26, both attended the festival in Houston, Texas, on Friday - when at least eight people died after a crowd surge - but the sisters both managed to avoid injury at NRG Park.
A source told People: "Everyone is shocked and upset. Kylie and Kendall were in the audience, but they are not injured."
Kylie was at the festival supporting Travis Scott - the father of her three-year-old daughter Stormi - who was performing on stage when the crowd surge took place.