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MIAMI (CBSMiami) — Authorities turned up with nothing after a reported bomb threat at a Miami courthouse Tuesday morning.

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According to Miami Police, a man called in saying he was being held hostage in a black car with a possible bomb inside and the car was in the parking lot at the Richard E. Gerstein Justice Building located at 1351 NW 12 Street.

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Through the morning, parking lots and streets near the building were evacuated as bomb-sniffing dogs smelled every car in the lots.  No one was being allowed in or out at the time.

Around 11 a.m., authorities said they found nothing after their hours-long search.  The parking lots and streets have since been reopened.

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Throughout the whole ordeal, Miami Police said the building remained open for regular business