Minnesota Governor Tim Walz called in the National Guard after a huge cyberattack prompted safety concerns in St. Paul. In the early hours of last Friday, the city’s cybersecurity protection systems detected “suspicious activity” on its network, St. Paul Mayor Melvin Carter said during a Tuesday press conference.

Gov. Tim Walz has activated the Minnesota National Guard to assist St. Paul in responding to a cyberattack on the capital city on Tuesday.

The City of St. Paul, Minnesota is grappling with the aftermath of a serious cyberattack that has disrupted internal systems and prompted officials to declare a state of emergency, activate the Emergency Operations Center,