Three people were arrested after Port Authority police officers found "multiple loaded guns, knives and ballistic vests"—plus 2,000 rounds of ammunition—in their car.

The two men, who are in their 50s, and one woman in her 20s, were stopped at the Holland Tunnel on the New Jersey side this morning when officers noticed a cracked windshield.

NBC New York reports, "Two senior law enforcement officials say the three suspects are so-called ‘gun enthusiasts’ and have no nexus to terror. There is no known threat."

Also: "One of the suspects allegedly told authorities the trio was en route to Queens to try to save a friend who is on heroin and being held against her will. Police are looking for the possible woman in Queens."

The Port Authority Police say the investigation is ongoing. We'll update as more information becomes available.