SAN FRANCISCO (CBS SF) – Two fighter jets were called to the skies above San Francisco Friday afternoon after a plane entered airspace that has been restricted during President Barack Obama’s visit to the Bay Area.

According to a statement from the North American Aerospace Defense Command (NORAD), two F-15’s found a general aviation aircraft in the airspace and the plane was out of communication.

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NORAD said the plane was able to reestablish communications. The plane was then escorted by the fighter jets to Half Moon Bay, where it safely landed.

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Mr. Obama arrived in the Bay Area on Thursday. The president was at Stanford University on Friday for a summit on Cybersecurity and a roundtable with local business leaders. He returned to San Francisco late Friday afternoon for a Democratic National Committee fundraiser.

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The president will depart San Francisco International Airport for Palm Springs on Saturday morning.