The second stage booster section of the Falcon 9 reportedly failed and the satellite and the rocket's second stage plummeted into the Indian Ocean after it was launched into orbit.
SpaceX ended launch commentary five minutes into the flight, due to the classified nature of the USA satellite.
Its Falcon 9 rocket "performed nominally", it said. "For clarity: after review of all data to date, Falcon 9 did everything correctly on Sunday night", she said.
"If we or others find otherwise based on further review, we will report it immediately", Shotwell added.
Information published that is contrary to this statement is categorically false. A day after White's statement, SpaceX president and chief operating officer, Gwynne Shotwell, was asked about Zuma.
"They're concerned any failure might hinder their ability to get future national security launch contracts", said Brian Weeden, the director of programme planning for the Secure World Foundation, a space-policy think tank. The company doesn't anticipate any impact on its upcoming launch schedule, including a Falcon 9 mission in three weeks.
Harrison, the defense analyst, said that SpaceX is in a frustrating position because it is limited in what it can say publicly about what happened. However, SpaceX censored critical portions of the launch, including the separation of the nose cone surrounding the top-secret Zuma satellite, and the satellite's actual deployment into earth's orbit. The mission, backed by the U.S. government, has become the talk of the town because neither the agency behind the liftoff nor the Pentagon are taking responsibility or sharing details about it post the liftoff.
But numerous news reports, citing unnamed government sources, said the satellite apparently re-entered Earth's atmosphere after failing to deploy from the Falcon 9's second stage.
Northrop Grumman provided the satellite, for which government agency it wouldn't say.
On Sunday night, the SpaceX's launch appeared to go smoothly.
In the meantime, Falcon Heavy, like its smaller cousin the Falcon 9, will advance SpaceX's goal of cutting launch costs by reusing rockets.
The likely culprit for the failed launch of the payload can be an American Corporation Northrop Grumman. After several delays, the Zuma took off from the Space Launch Complex 40 at the Cape Canaveral Air Force Station in Florida last Sunday.
On the heels of the Falcon Heavy and Falcon 9/GovSat 1 missions later this month, SpaceX plans at least two launches in February for two Spanish customers.