Federal authorities are investigating a suspected cyberattack on water facilities in Minnesota that U.S. officials have linked to Iran, according to multiple reports published Thursday. The attack targeted operational systems at water utilities in the state, though officials have not publicly disclosed the full scope of the intrusion or whether any systems were disrupted.

The investigation is being led by federal agencies, and officials are working to assess the extent of any damage or unauthorized access. Water infrastructure has become an increasingly prominent target for state-sponsored hackers in recent years, with Iranian-linked groups previously implicated in attacks on water systems in other parts of the United States and abroad.

Iran has a documented history of targeting critical U.S. infrastructure through cyber operations, including a 2023 attack on a Pennsylvania water authority that was attributed to an Iranian-backed group. Authorities have not specified which Iranian entity is suspected in the Minnesota case or what the apparent objective of the intrusion was.

The incident comes amid heightened tensions between the United States and Iran. Officials have repeatedly warned that adversarial nations are actively probing vulnerabilities in American water, energy, and communications systems. The Environmental Protection Agency and the Cybersecurity and Infrastructure Security Agency have both issued guidance in recent years urging water utilities to strengthen their digital defenses.

No injuries or significant service disruptions to Minnesota residents have been reported in connection with the suspected attack. The investigation remains ongoing, and federal officials have not yet publicly attributed the intrusion with formal certainty.