1974 Mitsubishi Heavy Industries bombing ( ) was a terrorist bombing of the Mitsubishi Heavy Industries headquarters in Tokyo , Japan on 30 August 1974 , killing eight people and injuring 376 others . The bombing was committed by the East Asia Anti-Japan Armed Front , a radical far-left anti-Japanese organization , against Mitsubishi Heavy Industries for supplying the United States in the Vietnam War . The 1974 Mitsubishi Heavy Industries bombing was the deadliest terrorist attack in Japan until the Tokyo subway sarin attack in 1995
Tokyo subway sarin attack
Tokyo subway sarin attack
1974 Mitsubishi Heavy Industries bombing