Authorities say passengers had to evacuate a smoking American Airlines jet at Denver International Airport using an emergency slide.

Video posted to social media showed passengers evacuating the aircraft using a slide as smoke and flames billowed from below the rear of the plane.

One passenger said she a heard a loud “boom” and then the plane “started to violently shake and we were drifting to the left side of the runway.” One person was injured in the evacuation that took place Saturday in Denver.