SpaceX CEO Elon Musk took to X on Thursday night to explain what his company believes may have caused part of the Starship rocket to experience a "rapid unscheduled disassembly."

The seventh test flight of SpaceX’s Starship ended with a successful landing of the rocket’s first stage but also the loss of the Starship vehicle

The US has grounded SpaceX's giant Starship rocket while an investigation is carried out into why it exploded during its latest test flight. The rocket's upper stage dramatically broke up and disintegrated over the Caribbean after launching from Texas on Thursday, forcing airline flights to alter course to avoid falling debris.