The Mark 21A American regression test failed by the Minotaur II+ booster rocket exploded just a few seconds after leaving the launch pad.

US military officials announced the incident occurred on the night of July 6 in the trial of Mark 21 recovery means at the Vandenberg space base in California.

Minotaur II+ missiles explode 11 seconds after leaving the testing pad.

Local media said the explosion caused a fire at Vandenberg base and the fire was controlled after about two hours.

The Minuteman III missile declared in the test at the US Vandenberg base in 2021. Photo: USSF.

The minotaur II+ missile launch takes place to test the features of the Mark 21A recovery vehicle.

LGM-35A Sentinal, previously called strategic deterrent weapons from the ground (GBSD), was developed to replace all 450 LGM-30 Minuteman III missiles, one of the three nuclear deterrent pillars of

Producer Lockheed Martin is creating the second Mark 21A prototype under contract with the US military.

The Sentinel program costs about US $ 96 billion, part of the effort to replace the entire US nuclear force for decades with a total cost of about US $ 1,200 billion.

LGM-35A Sentinal missiles will be placed in the underground solid launcher, using inertial astronomical navigation systems and satellite positioning.

The Pentagon is expected to spend $ 96 billion to deploy the continental missile system to replace 450 Minuteman III bullets in the payroll.