CAMP DAVID, Md. (AP) — Military aircraft have intercepted two small planes in restricted airspace around Camp David, where world leaders are gathering for an economic summit.

The North American Aerospace Defense Command says the two Cessna 172 aircraft were out of radio communication on Friday evening inside a 30-mile restricted area around the presidential retreat. The restricted area was expanded temporarily for the Group of Eight talks.

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U.S. Secret Service spokesman Max Milien says the violations were not deemed to be threatening.

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NORAD says an F-15 fighter jet intercepted the first plane just after 7 p.m. and the plane landed at York Airport in Thomasville, Pa. An F-15 and a Black Hawk helicopter intercepted the second plane about 15 minutes later and it landed on a grass runway in Pennsylvania.

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