The FBI building in Cincinnati was the scene of an armed man walking in and making security threats before apparently fleeing.

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A police search was launched after an armed suspect fled an FBI building. The photo was taken by Scott Olson.

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An armed suspect who attempted to break into the visitor screening office set off an alarm and fled when special agents responded to the scene.

The suspect entered the building and made threats before driving off, leading Ohio State Police into a car chase into Clinton County.

Several shots were fired in the area and a person was seen shooting at authorities from a corn field.

Multiple reports say that the FBI building is safe.

The roads in the area were closed due to an active law enforcement incident, and the Clinton County Emergency Management Agency advised people to stay inside.

The story is evolving.