The incident, which was first reported around 8:30 a.m., prompted airport police to shut down the entrance to the airport.
A bomb squad was called to the scene to investigate. Authorities found a replica rifle and replica grenades, which were deemed inert. Police said the man, described as a "World War II enthusiast," was there to pick someone up from the airport.
All roads were eventually reopened.
police shutdown of #LAX entry on Century Blvd @latimes pic.twitter.com/7lpqgdRPWb
— Nathan Mendelsohn (@nsmendelsohn) August 17, 2018
All Traffic Lanes have been opened into the Airport. Police Activity has been concluded.
— LA Airport PD (@LAAirportPD) August 17, 2018
Some travelers stuck in traffic were seen running from their vehicles toward the terminal in a bid to make their flights.
Traffic remained heavy in the area after the incident.