The United States is investigating cyberattacks that targeted multiple water systems in Minnesota, with officials warning that the activity shows links to hacker groups associated with Iran. Several outlets report that a senior law-enforcement official told NBC News that the Minnesota incidents have “hallmarks” consistent with Iranian-backed hackers. Other coverage says authorities are tracing the source of the attacks across more than 30 water systems and assessing how the intrusions affected local infrastructure. The reporting also frames the incidents within a broader pattern of cyber operations aimed at critical infrastructure, including water and other utilities. Officials are working to identify the perpetrators and determine the scope of any damage or disruption. While outlets cite suspicions of Iran-linked actors, the specific techniques used, the level of operational impact, and the identities of the attackers are not detailed in the provided summaries. The investigation is ongoing as authorities coordinate responses and issue cautions related to possible further cyberattacks.