Delta 757-200 (new colors) has landed on runway 31 and taxiied to a stand at the Marine Air Terminal (usually reserved for Shuttle flights).
http://www.NYCAviation.com field reporter Phil Derner, Jr. has seen emergency vehicles surround the aircraft and escort an ambulance to and from the scene.
Additionally, La Guardia may be closed as there have not been any arrivals or departures (CO 737 holding short of 04) for a considerable amount of time.
More details as they become available.
Brian
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