Staff at Oregon Health & Science University found a noose on the campus Thursday, and police are now reviewing footage to see who placed the racist symbol there.

OHSU said in a news release that someone found a noose looped over a construction cone in one of the research buildings, in a secure area that only some have access to with badges. The Lund Report first wrote about the finding.

The noose represents a violent history against black people, and many associate it with lynching.

Police dismantled the noose and reviewed footage from video cameras in the hallway, but said neither of the cameras covered the exact spot where it was found. Police are now reviewing badge reader data to see who could have accessed the secure area.

Employees who frequent the area said the noose appeared Thursday morning, according to the news release.

OHSU President Danny Jacobs and interim Vice President of Human Resources Greg Moawad issued a statement Friday condemning the racist symbol.

“We regret any distress it caused and acted quickly to remove it. OHSU does not tolerate harassment or intimidation of any kind,” Jacobs and Moawad said in the statement. “Harsh consequences are imposed for anyone at OHSU who by word or action is hostile to others.”

This is the second time a noose has been reported at OHSU in the past three years. In 2016, the Portland Tribune reported that someone taped a miniature noose on a door at the hospital. A medical assistant, who is black, discovered the symbol taped above a poster that read “Stress Reduction Kit,” with a circle surrounding the words “bang head here.”