Investigators found an `` improvised launch device '' outside of Yokota Air Base , officials say . Residents report hearing two small cannon-type bangs at about 11 p.m. local time . `` ... We take matters of security at our installation very seriously and we are assisting the Japanese National Police in their investigation into the matter . '' Score: 6
Investigators found an `` improvised launch device '' outside of Yokota Air Base , officials say . Residents report hearing two small cannon-type bangs at about 11 p.m. local time . Score: 6