Blue Origin's New Glenn rocket exploded Thursday night during a hot-fire test at a Space Force launch facility in Cape Canaveral, Florida.

Led by Amazon founder Jeff Bezos , Blue Origin is working on reusable rockets and launch services to rival those offered by Elon Musk 's SpaceX. A hot-fire test is conducted on the ground with the rocket engines ignited, while the vehicle is secured to the launch pad.

Bezos said in a post on social network X that all "personnel are accounted for and safe."

"It's too early to know the root cause but we're already working to find it," Bezos wrote. "Very rough day, but we'll rebuild whatever needs rebuilding and get back to flying.…