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An aircraft crashed into the Gulf of Mexico after circling in an "unresponsive" flight pattern for a while Thursday morning. It is believed that there was only one person on board -- a piliot who was apparently unconsious. 

Earlier, the Air Force had scrambled two F-15 fighters to intercept and monitor the flight path of the plane circling over the Gulf of Mexico.

ABC News reports:

"Contact was lost with the pilot of the Cessna, which is being tracked on radar. Officials believe the plane, which has not been identified, has less than one hour of fuel left.

The plane took off from Slidell, La., and was en route to Sarasota, Fla., according to a flight plan. Somewhere between the two points, it began flying in circles.

The FAA lost radio contact with the Cessna 412 before 9 a.m. ET. It was circling at approximately 28,000 feet. If it took off fully loaded, it will run out of fuel at 12:30 p.m. ET. Only the pilot is thought to be on board.

Officials at NORAD confirmed that the air defense agency has launched two F-15 fighter aircraft to intercept the general aircraft over the Gulf of Mexico.

NORAD spokesman John Cornelio said the fighter jets made contact visual with the aircraft over the Gulf around 8:45am. They are monitoring the situation providing overhead cover.

“We are monitoring the flight pattern and the aircraft remains unresponsive,” said Cornelio.

In addition to the Air Force F-15s, the Coast Guard has dispatched an HC-144 ocean sentry airplane from Mobile, Ala. An NH-60 Helicopter is on stand by in Clearwater, Fla. The US Coast Guard Cutter Coho is en route.

The Coast Guard has issued a safety net urging mariners to keep a lookout for the plane."

Editor's Note: This story has been updated to properly cite language that was originally used without attribution to ABC News. We apologize to our readers for this violation of our basic editorial standards. Mic has put in place new mechanisms, including plagiarism detection software, to ensure that this does not happen in the future.