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Director National Intelligence John Ratcliffe warns that Iran and Russia are attempting to undermine confidence in the 2020 election.

USA TODAY

Russian hackers have targeted an array of U.S. computer systems, including aviation and local government networks where intrusions were detected on some systems containing election-related material, federal officials said Thursday.

While officials acknowledged that the activity posed “some risk to elections information housed on (state and local government) networks,” there is “no evidence to date that the integrity of election data has been compromised,” according to an alert issued by the FBI and Department of Homeland Security.

Christopher Krebs, director of DHS’ Cybersecurity and Infrastructure Security Agency,  described the activity Thursday has a “broad scanning” effort by the Russians that had not interfered with actual voting.

The bulletin comes a day after U.S. intelligence officials warned that Iran and Russia had obtained U.S. voter registration information in an