The Missile Defense Agency says it has conducted another successful test of its ground-based interceptor system.

Monday's test involved a missile carrying a dummy warhead fired from Kwajalein Atoll in the Pacific Ocean towards the U.S. West Coast. Sensors tracked the missile as it flew, and then two interceptors were launched from Vandenberg Air Force Base in California.

The first interceptor successfully slammed into the dummy warhead high over the Pacific. As designed, the second interceptor appeared to continue to seek a target, eventually hitting the largest chunk of debris it could find, according to Thomas Karako, the Director of the Missile Defense Project at the Center for Strategic and International Studies.