The giant explosion that destroyed a SpaceX Starship vehicle on the test stand this week was likely caused by the failure of a pressurized nitrogen tank, the company said.

The late-night explosion at SpaceX's rocket development complex in Starbase, Texas, destroyed the bullet-shaped upper stage that was slated to launch on the next Starship test flight. The powerful blast set off fires around SpaceX's Massey's Test Site, located a few miles from the company's Starship factory and launch pads.