Explosion At Kennedy Space Center
NASA says SpaceX was conducting a test firing of its unmanned rocket when the blast occurred Thursday morning. The test, considered routine, was in advance of a planned Saturday launch from Cape Canaveral Air Force Station.
The cause of the blast is not clear and it is not known if anyone was hurt.
Pictures from the scene show a huge plume of smoke rising above the complex.
The force of the blast shook buildings several miles away.
SpaceX has used its Falcon-9 rocket to take supplies to the International Space Station (ISS).
We will update as information becomes available.