"Another vague call came in regarding the [Bergen County] courthouse, too, but it hasn't been evacuated as of yet," one law enforement official told Daily Voice around 4 p.m.
"I hope investigators can trace that IP address," the veteran officer said. "Then we'll know what's what with these."
Several threats have come in recent weeks to county institutions.
Last Thursday morning, a threat that grenades had been strategically placed cleared three Bergen County institutions -- the courthouse, the administration building and Bergen Community College's campuses -- caused a logistical headache for authorities and traffic tieups for motorists.
Each time authorities have had to evacuate buildings and sweep them with explosive-sniffing dogs.
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