U.S. Park Police said Sunday they obtained an arrest warrant for a man they think “may have information” about a possible Veterans Day shooting incident near the White House.

Sgt. David Schlosser, a Park Police spokesman, said investigators now think only one car was involved in the Friday night incident in which gunfire was reported on Constitution Avenue south of the White House.

Oscar Ramiro Ortega (U.S. Park Police)

Schlosser said investigators found a semi-automatic rifle and spent shell casing in the vehicle. Police believe Ortega has ties to Idaho but is probably still in the Washington area, he said.

Park Police said they “investigated a sound of shots fired” at about 9:30 p.m. Friday in the 1600 block of Constitution Avenue, between the White House and the Washington Monument. The south portico of the executive mansion is visible from the avenue, about one-half mile away. There have been no reports of bullets striking any objects in the area that night, Schlosser said.

Police said Ortega is 5 feet 11 inches tall and 160 pounds with a medium build, brown eyes and black hair. Police said Ortega had several tattoos, including three dots on his right hand; “Ortega” on his upper back; “Israel” on the left side of his neck; folded hands on his left chest; and rosary beads and clasped hands on his right chest.