The Federal Aviation Administration has paused SpaceX's the launch of its Starship rocket as the U.S. agency oversees an investigation by the private company of the breakup after a test launch Thursday.

Elon Musk's SpaceX's Starship test flight ended in failure as the spacecraft exploded and broke apart, following a suspected fuel leak in the engine firewall.

A SpaceX Starship rocket broke up in space minutes after launching from Texas on Thursday, forcing airline flights over the Gulf of Mexico to alter course to avoid falling debris and setting back Elon Musk's flagship rocket program.