LOS ANGELES (CBSLA) — UCLA has reverted to remote learning, after students and faculty received a threatening email and posting from a former instructor.

UCLA Police Department is aware of a concerning email and posting sent to some members of the UCLA community today and actively engaged with out-of-state law enforcement and federal agencies. We will keep the community informed as we learn more.

— UCLA (@UCLA) February 1, 2022

At about 11:57 p.m. on Monday night, UCLA announced that all classes would return to remote learning on Feb. 1 “out of an abundance of caution.” UCLA had just returned to in-person learning Monday morning because of the recent COVID-19 surge.

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“UCLA Police Department is aware of a concerning email and posting sent to some members of the UCLA community today and actively engaged with out-of-state law enforcement and federal agencies,” the university wrote in a statement. “We will keep the community informed as we learn more.”

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According to the Daily Bruin, the email and posting were sent from a former instructor at UCLA. According to a campus safety alert, authorities do not have information if the suspect is currently in California.

“UCLA is actively working with out-of-state and federal agencies on threats sent to some members of our community,” the university tweeted.

UCPD is actively working with out-of-state & federal agencies on threats sent to some members of our community. We do not have specific information that this individual is in CA. Out of an abundance of caution, all classes will be held remotely Feb 1. We will keep you updated.

— UCLA (@UCLA) February 1, 2022

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This is a developing story. Check back for more details.