Update 1/9/2019: This article has been updated to reflect information from another campuswide email.

Several parts of the UC Berkeley campus experienced a power outage Thursday morning.

According to a campuswide email from Vice Chancellor of Administration Marc Fisher, the outage was caused by an unexpected failure of local high voltage equipment in a campus building. He added that crews were deployed to locate the source of the issue and restore power. According to Fisher, the outage was completely unrelated to PG&E, which has been responsible for campus outages in past months.

UCPD first alerted the public at about 7:45 a.m. that about 16 campus buildings were without power, including Moffitt Library, Bancroft Library, California Hall and California Memorial Stadium. The power outage is affecting the network infrastructure of impacted buildings, including Wi-Fi and phone services, according to a campuswide email from UCPD. According to Fisher, key card access to some buildings has also been affected.

At about 8:30 a.m., UCPD released an updated list of eight buildings without power, including Sproul Hall, Barrows Hall and Doe Library. Moffitt Library and Bancroft Library, which are operating under limited hours and open at 9 a.m. according to their websites, were no longer on the list.

UCPD is requesting that campus members delay their arrivals and form alternative arrangements for work.

According to Fisher, only three buildings — Barrows Hall, Doe Library and Sproul Hall — were still without power by 11:30 a.m. He added that campus expects to return to full operation by the next day.

This is an ongoing story. Check back for updates.