Follow KDKA-TV: Facebook | Twitter

HARRISBURG, Pa. (AP) – A spokesman for U.S. Sen. Pat Toomey says Google alerted the Pennsylvania Republican’s office that hackers with ties to a “nation-state” had sent phishing emails to old campaign email accounts.

READ MORE: West View Teen Accused Of Poisoning Parents

Steve Kelly says Google alerted Toomey’s office earlier this week about the attempt to infiltrate email accounts. Kelly says the accounts hadn’t been used since the end of the 2016 campaign, and the nation-state wasn’t identified.

Kelly says “this underscores the cybersecurity threats our government, campaigns and elections are currently facing” and says “it is essential that Congress impose tough penalties on any entity that undermines our institutions.”

READ MORE: Walmart Issues Recall For Aromatherapy Spray Containing Dangerous Bacteria That Can Cause Death

Toomey isn’t currently running.

The notification is the latest by a tech company of suspected Kremlin attempts to spy on U.S. elected officials and campaigns and potentially meddle in U.S. politics.

MORE NEWS: National Prescription Drug Take Back Day Is Saturday

(Copyright 2018 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)