The "rapid unscheduled disassembly" was likely caused by a propellant leak, Elon Musk said, and was captured on video by spectators on the ground.

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,

The U.S. Federal Aviation Administration is requiring an investigation into the explosion of SpaceX's Starship upper stage during the vehicle's seventh test flight on Jan. 16.

The U.S. Federal Aviation Administration said on Friday it will oversee an investigation by Elon Musk's SpaceX into an explosive Starship test flight the previous day that forced airlines to divert dozens of flights to avoid debris.

The incident in which a SpaceX rocket broke up after launch demonstrates the challenges the FAA will face as the number of commercial space flights increases.

SpaceX launched its Starship rocket on its latest test flight Thursday, but the spacecraft was destroyed following a thrilling booster catch back at the pad. Elon Musk’s company said Starship broke apart — what it called a “rapid unscheduled disassembly.

The U.S. Federal Aviation Administration and officials from the Turks and Caicos Islands have launched probes into SpaceX's explosive Starship rocket test that sent debris streaking over the northern Caribbean and forced airlines to divert dozens of flights.

A fire in the aft section of SpaceX's Starship trigged the apparent explosion that destroyed the spacecraft, the company says.