UPDATE: SpaceX just released an updated statement on the explosion.
Loss of Falcon vehicle today during propellant fill operation. Originated around upper stage oxygen tank. Cause still unknown. More soon.— Elon Musk (@elonmusk) September 1, 2016
This is what SpaceX founder and CEO Elon Musk had to say about the incident.
Facebook isn't happy
The rocket was intended to be launched on Saturday, September 3 on a mission to launch Facebook's first satellite into orbit.
A Facebook spokesman told the Associated Press that the company is disappointed by the loss of a rocket in the SpaceX explosion. The satellite was intended to be part of a plan to bring internet service to areas of sub-Saharan Africa.
Currently, Mark Zuckerberg, Facebook's CEO, is on his first visit to sub-Saharan Africa.
According to NASA, a SpaceX Falcon 9 rocket blew up while conducting a test firing of an unmanned rocket on Thursday morning. The test was being conducted at Cape Canaveral Air Force Station in Eastern Florida.
The rocket and the payload (Amos 6 satellite) were destroyed.
A cloud of smoke from the explosion filled the sky.
Many buildings in the area shook from the blast.
The Associated Press contributed to this report.