Group Plotted Chemical Attack During Rio Games: Documents | NBC Southern California
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Group Plotted Chemical Attack During Rio Games: Documents

The men allegedly discussed a plan to contaminate one of Rio's reservoirs, documents reviewed by NBC News show

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    Getty Images, File
    In this July 17, 2016, file photo, Brazilian soldiers stand on patrol during a security rehearsal of the Rio 2016 Olympic Games opening ceremony at the Maracana stadium. A group's plot to attack a Rio reservoir was more serious than stated at the time of their arrest, a source told NBC News.

    Twelve people suspected of discussing plans to attack the Rio Olympics, including a "biochemical attack" on a water reservoir, were indicted in Brazil Friday, a source close to the investigation told NBC News.

    The men were arrested in a series of anti-terrorism raids in late July, a couple of weeks before the Olympic Games. The group pledged allegiance to an ISIS offshoot, authorities said.

    Brazil's Justice Minister at the time called the poorly organized group "absolutely amateur" with "no preparation at all." The source said the plot was more serious than initially described.

    The men allegedly discussed a plan to contaminate one of Rio de Janeiro's water reservoirs to attack the Games, according to court documents reviewed by NBC News.