According to Japanese broadcasting corporation NHK, a series of explosions occurred at an US military facility in the Japanese city of Sagamihara. Multiple explosions were heard at about 1 a.m. local time at a warehouse at the US army base in Kanagawa Prefecture near Tokyo. No injuries have been reported yet. The site is located near residential areas. Burning and emergency vehicles are at the scene. The reason of the accident is unknown so far.