Witnesses on Friday reported hearing shots and seeing two speeding vehicles in the area.

WASHINGTON (AP) — A man wanted in an investigation of shots fired near the White House was arrested Wednesday in the state of Pennsylvania, a day after agents discovered two bullets had struck the executive mansion while President Barack Obama was away, the U.S. Secret Service said.

The Secret Service said it discovered Tuesday that the two bullets had hit the White House, one of them apparently cracking a window on the level of the president's living quarters, while Obama and his wife Michelle were on a trip to California and Hawaii. The president has since traveled on to Australia, his second stop on a nine-day tour of the Asia-Pacific region.

The discovery of bullet holes followed reports of gunfire near the White House on Friday night, although the bullets have not been conclusively connected with that shooting, authorities said. An assault rifle and an abandoned vehicle were found Friday, which led authorities to disclose they had linked Oscar Ramiro Ortega-Hernandez to the reported gunfire.

Ortega, 21, was arrested Wednesday afternoon by Pennsylvania authorities at a hotel in the southwest part of the state, the Secret Service said. He was in Pennsylvania State Police custody. A tip from someone who saw and identified Ortega led to his arrest, Secret Service spokesman George Ogilvie said.

Ortega did not resist arrest, said Pennsylvania State Trooper Lt. Brad Shilds. He will make his first court appearance Thursday in Pittsburgh, according to the staff of U.S. Magistrate Judge Cynthia Reed Eddy.

Ortega is from Idaho Falls, Idaho, and was reported missing Oct. 31 by his family. On Friday morning, he was stopped by police in a Washington suburb after officers were called for a report of a suspicious person. Police took photos of him but did not have any reason to arrest him, according to police Lt. Joe Kantor.

Ortega has an arrest record in three states but has not been linked to any radical organizations, U.S. Park Police have said.

Witnesses on Friday reported hearing shots and seeing two speeding vehicles in the area. The assault rifle was recovered nearby and the abandoned car that authorities linked to Ortega was found near a bridge.

The bullet that hit the White House window was stopped by ballistic glass. The Secret Service did not disclose the location of the second bullet, saying only that it "was found on the exterior of the White House."