On March 20, 1995, the Japanese religious sect Aum Shinrikyo staged a gas attack on the Tokyo subway. As a result of exposure to the poisonous substance sarin, 12 people died, over 5 thousand were injured, and about 3 thousand were left disabled. The leadership of the sect was convicted, and the sect itself was disbanded. The group has been on the US State Department's blacklist of terrorist organizations since 1998.