A U.S. Air Force plane intercepted a small passenger plane that was flying near the Camp David presidential retreat. President Barack H. Obama is staying at the site this weekend.

"The civilian aircraft, which was out of radio communication, was intercepted approximately six miles (10 kilometers) from Camp David," security officials said in a statement. The Air Force plane. "escorted the aircraft out of the area and it landed at Hagerstown, Maryland, without incident."