( CNN) The head of the Department of Homeland Security warned state officials on Saturday that security threats from Russia targeting US elections has not dissipated.

“There is little doubt that antagonists and non-state actors continue to view elections as a target for cyber and influence operations, ” Nielsen told the state officials, who are responsible for administering elections.

Still, she said, there are “no indications that Russia is targeting the 2018 US midterms at a scale or scope to match their activities in 2016. “