Panic struck the Tokyo subway on 20 March 1995. Men boarded subway cars with plastic bags and umbrellas, removed the newspaper covering the bags, and punctured them with the sharp tips of the umbrellas releasing sarin gas, a biogological weapon first developed by the Nazis during World War Two, into the underground. Eight of eleven bags were broken open and leaked 159 ounces of liquid sarin onto the cars as they hurtled through the subway system. Twelve people were killed, 1,039 were injured, and 4,460 went the hospital reporting symptoms of exposure. The men were members of Aum Shinkrikyo, a religious organization founded by Shoko Asahara in 1987, and were hoping to spark an armageddon—namely war between Japan and the United States—according to their guru's designs.