The nation’s cyber defense agency said late Tuesday that the voting process remained secure nationwide despite fake bomb threats to polling places and dismissed an unspecified claim of “cheating” by Republican nominee Donald Trump.

Cait Conley, senior adviser to the director of the Cybersecurity and Infrastructure Security Agency, told reporters that they are “not currently tracking any significant incident with a national impact on the security of the election infrastructure.”

“What we’ve seen consistently in these affected states and jurisdictions is the incredible resilience of this process, and that’s because of the election officials who have been so vigilant in their preparation for this election cycle,” she said.

The FBI said Tuesday that unbelievable bomb threats have been made to polling places in several states, many appearing to originate from Russian email domains. The agency’s statement did not directly accuse Russian actors of being behind the threats.

Other bomb threats in Georgia later in the day prompted extended hours at a dozen polling places, according to state election officials.

A Georgia state court has ordered several polling places in DeKalb County to remain open up to an hour after polls would normally close in the wake of several bomb threats to the polls.

The statement comes as US intelligence officials have warned that actors linked to Russia are working to undermine the validity of the election and “instill fear in voters about the electoral process”.

Conley reiterated earlier warnings from US officials that foreign adversaries “may continue their malign influence activities in the coming days, seeking to undermine the American public’s confidence in the legitimacy of our election results, regardless of the outcome.”

“We cannot let our adversaries have a vote in our democracy, so let’s all please stay vigilant,” Conley said.

US officials have reported that Russia is trying to boost Trump’s candidacy, while Iran favors Vice President Kamala Harris, and officials have spent the last few weeks before the election debunking specific instances of disinformation.

In one example, Russian influence actors produced and amplified a video that falsely showed an interview with a person “alleging election fraud in Arizona involving the creation of fake overseas ballots and the alteration of voter rolls.” , according to a joint statement Monday by CISA, the FBI. and the Office of the Director of National Intelligence.

Intelligence officials also reported that Russian influencers posted an article falsely claiming that “U.S. officials in swing states plan to orchestrate election fraud using a range of tactics such as ballot stuffing and cyber attacks.” , according to the joint statement.

Conley said Tuesday that the U.S. is facing “a greater scale and scope of foreign influence operations” this year compared to previous election cycles. Russia, she said, has the greatest capability and sophistication in targeting U.S. elections among foreign adversaries.

Trump says

In a post on social media, Trump, the Republican candidate, posted: “Massive Fraud in Philadelphia is being talked about a lot. The law enforcement officers are coming!!!” In another, Trump posted: “Philadelphia and Detroit! Heavy law enforcement is there!!!”

Asked about the possibility of broader fraud in Pennsylvania, Conley said the agency was “in close communication with state and local election officials across the country today.”

“We have no data or reports to support these claims,” ​​she said.

Philadelphia District Attorney Larry Krasner issued a statement Tuesday saying “there is no factual basis within law enforcement to support this wild allegation.”

And Seth Bluestein, a Philadelphia city commissioner, posted on social media that “there is absolutely no truth to this allegation. It’s yet another example of misinformation.”

— Michael Macagnone contributed to this report