SpaceX says rocket accident probe focusing on fueling system flaw
An explosion on the launch site of a SpaceX Falcon 9 rocket is shown in this still image from video in Cape Canaveral, Florida, U.S. September 1, 2016. U.S. Launch Report/Handout via REUTERS/File Photo

SpaceX said on Friday its investigation of the cause of a Sept. 1 explosion that destroyed a Falcon 9 rocket is focusing on a possible flaw in the fueling system.

The space launch company led by billionaire Elon Musk said it has not confirmed the cause of a failure in the fueling system. However, the company said in a statement that during testing at a facility in Texas it had replicated a failure of a pressurized vessel inside the rocket's liquid oxygen tank that is similar to the failure believed to have occurred while helium was being loaded into the rocket.

(Reporting By Irene Klotz; Editing by Joseph White and Chris Reese)