A spokesperson for the FBI said there is nothing to substantiate the claim, but water distribution divisions were asked to be extra vigilant over the next 30 days to keep an eye out for anything suspicious.
Officials did not provide details of the threat, but FBI spokesperson Bridget Patton said every threat is investigated and taken seriously.
Patton said FBI officials received the threat but did not indicate when it came in or name the other cities. In an email sent to city leaders, Wichita was one of four cities mentioned in threats related to water distribution systems.
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