A presidential aircraft dubbed the “Doomsday Plane” was recently spotted at LAX … and social media has already jumped to the most disastrous conclusions.

The Boeing E-4 Advanced Airborne Command Post was filmed landing in Los Angeles on Thursday … and it’s a pretty big freaking deal given the current extreme global tensions.

Basically, this is the bird President Trump would travel in amid a nuclear war … so yeah, people are going bananas online.

The “Doomsday Plane” is actually one of several in a fleet of planes that is constantly on alert and usually in the air, can withstand a nuclear blast, and is protected against an electromagnetic pulse — or as the U.S. Air Force explains … “In case of national emergency or destruction of ground command and control centers, the aircraft provides a highly survivable command, control, and communications center to direct U.S. forces, execute emergency war orders, and coordinate actions by civil authorities.”

So far … there’s no official word as to why the plane is out and about — but the rare sighting has some people freaking out, assuming we’re on the brink of WWIII.