A cyberattack has caused Nevada’s state offices to close for two days this week and rendered some government websites and phone lines unavailable.

A “network security incident” that forced Nevada state government offices to close this week and shut down some state websites and phone lines is the result of a cyberattack, Gov. Joe Lombardo said Tuesday.

Nevada remains two days into a cyberattack that began early Sunday, disrupting government websites, phone systems, and online platforms, and forcing all state offices to close on Monday.