WASHINGTON (AP) — An Iowa man is being held on a weapons charge after Secret Service officers say they found a hunting rifle, dozens of rounds of ammunition and a knife in his car parked near the White House. The Secret Service says R.J. Kapheim, 41, was arrested on a charge of having an unregistered firearm.

Kapheim, from Davenport, Iowa, was arrested after he approached uniformed officers along 15th Street just before 1 p.m. Wednesday and explained that someone in Iowa told him to drive to the White House. He later showed them to his car parked nearby and let officers search the vehicle. The agency reports they found the rifle, ammunition and a 6-inch knife in the truck of his 2013 Volkswagen Passat.