Riots, or excuse us, “activities” in Baltimore, lead the University of Maryland’s Baltimore campus to close Monday afternoon.

According to Washington’s Top News:

University of Maryland, Baltimore closes amid threat of violence

WASHINGTON — The University of Maryland, Baltimore campus closed Monday afternoon saying the Baltimore Police have warned that “activities” in the area may turn violent.

UMB closed at 2 p.m. at the recommendation of the Baltimore Police Department, the university says on its website.

The school cited “scheduled activities today beginning at 3 p.m.” School spokesman Alex Likowski said he didn’t know what type of activity might be passing through campus or what prompted the warning from police.

Baltimore Police said in a news release Monday that the department had received a “credible threat” that three notoriously violent gangs are now working together to “take out” law enforcement officers.

UMB closed school because of the potential for violent activity, it says on its website.

Below is the message posted on the university’s website:

Due to reports from the Baltimore Police Department (BPD) concerning scheduled activities today beginning at 3 p.m., UMB will close today at 2 p.m. at the recommendation of the BPD. These activities may be potentially violent and UMB could be in the path of any violence. The safety of our students and employees is of paramount importance please vacate the campus as soon as possible.

The Baltimore offices of T. Rowe Price, a global investment management firm, closed Monday as well.