CLEVELAND, Ohio -- Agents from three federal agencies visited Cleveland City Hall Wednesday night as part of a criminal investigation, according to an IRS spokesman.

Agents from the IRS, FBI and Department of Housing and Urban Development were present at the city's Lakeside Avenue offices for "official business," according to IRS spokesman Craig Casserly.

Details of what brought the agents to City Hall after hours were not immediately known, nor was the focus of the agencies' investigation. Casserly said he could not release additional details about the agents' work because court records are sealed.

Cleveland FBI spokeswoman Vicki Anderson also confirmed in an emailed statement Thursday morning that agents from the three federal agencies were at City Hall "after business hours for authorized law enforcement activity." Like Casserly, she said she could not provide more information because of sealed records.

A cleveland.com reporter witnessed an unmarked black SUV leave the City Hall parking garage about 11:15 p.m.

City spokesman Dan Williams said in a statement Thursday morning that "it is an ongoing investigation by federal agencies. While we do not discuss ongoing investigations we will fully cooperate."

Cleveland.com reporter Justin Madden contributed to this story. This story was updated after receiving statement from the Cleveland FBI and the city.

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