NEW JERSEY — NJ.com reported Monday that at least two New Jersey municipal water systems were targeted in a wave of cyberattacks resembling incidents that federal officials have previously attributed in other states to Iran-affiliated hackers targeting utilities across the country.

State officials said the attacks temporarily disrupted remote monitoring and automated controls but did not interrupt water service or compromise drinking water.

The New Jersey Office of Homeland Security and Preparedness said operators at both affected utilities quickly switched to manual operations while the systems were secured.

"The state's water systems are secure and there is no current threat," agency spokesman Christopher Thoresen said. "Backup procedures were put in place immediately, and water service continued normally throughout."

Officials did not identify the two municipal water systems that were targeted.

The incidents come days after similar cyberattacks were reported against water utilities in several other states, including Minnesota and Michigan. While investigators have not publicly identified who was behind the latest attacks, New Jersey cybersecurity officials have previously warned that Iran-affiliated groups, including CyberAv3ngers, have targeted internet-connected programmable logic controllers used by water and wastewater systems.

Last week, the FBI and Environmental Protection Agency issued a joint alert warning that "malicious cyber actors" were actively targeting water utility control systems, while the Cybersecurity and Infrastructure Security Agency reported a significant increase in cyber activity aimed at critical water infrastructure.

New Jersey officials said both affected systems have since been secured with stronger access controls, and the New Jersey Cybersecurity and Communications Integration Cell continues working with utilities statewide to reduce the risk of future attacks.