The Imperial Household Agency released pictures of a bunker used by the late Emperor Hirohito during World War II where he approved Japan’s surrender to the Allied Forces 70 years ago.

The images, taken recently, show parts of the bunker including the conference room where the emperor met with government officials in the final days of the war, according to the agency. The bunker, located within the imperial palace, also includes two toilets, a machinery room, a communications room and offices. Images released show walls and doors covered in rust. Floors and walls made of wood are also heavily damaged.

In additions to the images of the facility, the agency also released the original recording of Emperor Hirohito’s speech on Aug. 15, 1945, announcing Japan’s surrender.

The master disc of the original audio, known as Gyokuon Hoso in Japanese, had been kept by the agency and only its copy had been available widely.

The agency said it retrieved the audio from the original disc to commemorate the 70 anniversary of the end of the war and preserved it digitally.

