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FBI agents raided the Hammond Police Department offices and the Tangipahoa Parish Sheriff's Office on Thursday, Dec. 15, 2016.

(Hammond Police Department)

The FBI raided the Hammond Police and the Tangipahoa Parish Sheriff's offices Thursday (Dec. 15), WBRZ-TV and other news media reported.

FBI raid of Hammond, Tangipahoa police offices tied to drug task force: reports DEA task force has seen one agent suspected, two arrested

City officials confirmed to the TV station that federal agents were at police headquarters, but they declined to comment further. The station said it was unclear what probe prompted the raids.

"We are conducting multiple court-authorized actions. The investigations are ongoing," an FBI spokesperson told WBRZ.

The Daily Star in Hammond said FBI agents had blocked the entrances at the police station in downtown Hammond. Witnesses told the newspaper that agents also were at the Tangipahoa Parish Sheriff substation on Club Deluxe Road in Hammond. Reporters saw about 20 agents outside the Hammond police station, the newspaper reported.

FBI agents are blocking the entrances at the Hammond police station downtown. Witnesses say FBI also has the Tangipahoa... Posted by The Daily Star (Hammond, La.) on Thursday, December 15, 2016

Andre Jeanfreau, FBI special agent, says the bureau is conducting multiple court authorized actions. Investigations are... Posted by The Daily Star (Hammond, La.) on Thursday, December 15, 2016

Stay with NOLA.com for more on this developing story.