A massive global Microsoft outage affecting the U.S. is impacting local governments around the greater Bay Area on Thursday.

According to Microsoft, affected servers are “overwhelmed,” and engineers are working on solving the problem but do not have an estimated time of recovery.

The first reports of outages began at 9 a.m., and the affected Microsoft products include Outlook email, Teams chat, Word and other applications, all of which are used by individuals as well as organizations such as cities and counties.

Loss of service has been either total or intermittent.

Contra Costa County reported being unable to use its email and other Microsoft applications, as well as the cities of San Francisco, Oakley, Sebastopol and Vallejo.

Katy St. Clair got her start in journalism by working in the classifieds department at the East Bay Express during the height of alt weeklies, then sweet talked her way into becoming staff writer, submissions editor, and music editor. She has been a columnist in the East Bay Express, SF Weekly, and the San Francisco Examiner. Starting in 2015, she begrudgingly scaled the inverted pyramid at dailies such as the Vallejo Times-Herald, The Vacaville Reporter, and the Daily Republic. She has her own independent news site and blog that covers the delightfully dysfunctional town of Vallejo, California, where she also collaborates with the investigative team at Open Vallejo. A passionate advocate for people with developmental disabilities, she serves on both the Board of the Arc of Solano and the Arc of California. She lives in Vallejo.