Warning: This story contains an image some may find offensive. Reader discretion is advised.

Washington (CNN) This time, it was an accident.

At least, that's what Air Force officials said in an official statement Thursday after yet another drawing resembling male genitalia appeared in the sky, this time over Luke Air Force Base in Arizona.

During a training exercise on Tuesday, F-35 fighter jet pilots inadvertently created a condensed air trail in the shape of a penis -- images of which caused a stir on social media.

But unlike previous incidents involving the use of military aircraft to create phallic images, base officials insist that this suggestive depiction was an accident and the result of normal flight maneuvers as the fifth-generation jets engaged in a simulated dogfight.

"We've seen the photos that have been circulating online from Tuesday afternoon. 56th Fighter Wing senior leadership reviewed the training tapes from the flight and confirmed that F-35s conducting standard fighter training maneuvers ... resulted in the creation of the contrails," a spokesperson from Luke AFB told CNN.

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