Jesse in a previous attempt to break her land speed record.

Famed racer Jessi Combs, aka "the fastest woman on four wheels," has died while attempting to set a new land speed record in Oregon. The vehicle she crashed was a 52,000 horsepower jet-powered car. She was only 39-years-old. 

The fatal crash occurred August 27 on the Alvord Desert, a dry lakebed located in southeast Oregon, is the same area Jessi used to break previous records. A member of her racing team confirmed the tragedy this morning on Instagram.

View this post on Instagram

So I don’t know how to say any of this but it all needs said. I have never loved or been loved by anyone as much as this amazing woman @thejessicombs she was truly my unicorn and I enjoyed every single minute that I had with her. She was the most amazing spirit that I have ever or will ever know. Unfortunately we lost her yesterday in a horrific accident, I was the first one there and trust me we did everything humanly possible to save her!! I’m not ok, but she is right here keeping my going-I made her a promise that if this didn’t go well that I would make sure and do good with it, please help me with that, you are all going to see things on news please believe non of them.. we the family have drafted a release and it will come out today with more proper info, but I was just woke up by the media tracking me down and I need everyone of her true friends to do what she would want “take a deep breath, relax” and do good things with this. Please donate to nothing, I know there will be people try, we are finishing the documentary as she wished and the world will know the truth and her foundation will use those funds to do amazing things in this world and make her legacy live on properly. In the coming days her family and I will get the proper channels put together that you can then donate to that foundation but until you hear it from me wait please-I don’t want some asshole profiting off this (all ready had one try to sell us a video)... . . Love you all and thank you all for being such amazing friends to her, she dedicated her life to helping support others dreams and I promise I will continue that.

A post shared by Terry L. Madden (@terry_madden) on

Jessi was attempting to break her previous record of 398 mph, which she set in 2013. In a 2018 attempt, she exceeded 483 mph, however, that attempt could not be made official.

Besides racing, Jessi was known for her work on television shows including Overhaulin', Xtreme 4x4, Mythbusters, and All Girls Garage.

Here's one of her last tweets:

Friends and fans have reached out on Twitter to share their condolences and stories about Jessi.

More information to come.