The Air Force says an unarmed Minuteman 3 missile was launched from California in a test of the intercontinental ballistic missile system.

The missile lifted off from Vandenberg Air Force Base at 3:36 a.m. Monday.

Col. Keith Balts says the test will provide accuracy and reliability data for current and future modifications of the Minuteman system.

The missile used in the test was brought from F.E. Warren Air Force Base in Wyoming.