A plane that took off from the Wiley Post Airport in Oklahoma City, Oklahoma, is missing.
The small aircraft, which can seat five people, was supposed to land in Georgetown, Texas, but radar data shows that it kept going and flew south over the Gulf of Mexico.
>> Read more trending news
The Coast Guard said it is searching for the last point of contact to confirm whether or not the plane is lost. Officials with NORAD sent four F-16 fighter jets to aid in the search.
Authorities found the plane, but officials said they could not get the pilot to respond.
The pilots of the fighter jets said they could only see one person on board -- the pilot.
Mexican authorities, the US Coast Guard and the State Department are now in charge of the investigation.
The plane is registered to Abide Aviation LLC out of Edmond, Oklahoma.
The aircraft is a Cirrus SR-22, which is usually equipped with a parachute system that requires someone to pull a lever in the event of an emergency.