The New Jersey health department has fined a state hospital $63,000 after police discovered a stockpile of 39 firearms—including an illegal assault rifle with a high-capacity magazine—stashed in an unlocked hospital closet.

The firearm stockpile was found on the afternoon of July 18, when Secaucus police were called to the Hudson Regional Hospital over a bomb threat. The bomb threat was later determined to be a hoax, but while police conducted a safety sweep of the facility, bomb-sniffing dogs led officers to the weapons.