Police were responding to an active shooter situation at the Virginia Beach Municipal Center on Friday afternoon.

Authorities said via social media they believed there was just one shooter, who'd been taken into custody by the time of publication. There were multiple injuries, according to the Virginia Beach Police Department.

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The Virginian-Pilot reported that at least four people were injured and were sent to area hospitals.

Virginia Gov. Ralph Northam urged his constituents to stay away from the area and abide law enforcement warnings in a tweet on Friday.

The shooting occurred in Building 2 of the center on Friday afternoon. It houses departments such as planning, public works and public utilities, and employees were seen exiting the building in tears, with some in need of medical assistance, according to reports by Fox News affiliate WAVY News 10.

Christina Pullen, a spokeswoman for the FBI in Norfolk, said the bureau is responding to assist Virginia Beach police, The Associated Press reported. She did not have specifics on how many people were hurt.

According to The Virginian-Pilot, City Council Member Barbara Henley had just pulled up to the City Hall building just after 4 p.m. to pick up the agenda when she heard sirens and saw police cars.

“I thought it was an accident,” Henley said, according to the paper.

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This is a developing story. Check back soon for updates.