The U.S. Air Force aborted the test launch of an unarmed Minuteman 3 intercontinental ballistic missile on Wednesday shortly before liftoff from Vandenberg Air Force Base in California.

Aborted Missile Launch

“The cause of the ground abort is currently under investigation and Air Force Global Strike Command is assessing the potential to reschedule the launch,” said a statement from the Air Force.

“The Air Force adheres to strict protocols while performing operational test launches, only launching when all safety parameters with the test range and missile are met,” said the statement.

 Authorities had scheduled the test launch to be conducted between 12:15 a.m. and 6:15 a.m. the agency had not revealed any other information of the incident to the public.

The U.S. Air Force frequently launches ICBMs from California for test launches that send out unarmed re-entry vehicles to a specific area in the Pacific Ocean, the Associated Press reported.