WASHINGTON (Sputnik) — The statement about the leak appeared on the ULA's Facebook page.
"Today's Atlas V launch of DigitalGlobe's WorldView-4 mission was scrubbed today due to a minor ground leak during propellant tanking," the statement reads.
As long as the issue is fixed, the rocket will launch on Saturday at 11:30 a.m. PDT (6:30 p.m. GMT), the company added.