A fighter jet carried out what is known as a "headbutt maneuver" to get the attention of one particular civilian pilot, the U.S. military said.

Some of the planes were met by F-16 fighter jets operated by the North American Aerospace Defense Command (NORAD), and forced out of the airspace.

Over the July 5–6 weekend, NORAD scrambled F-16 jets 11 times to intercept private planes that entered the restricted zone around President Donald Trump’s Bedminster golf club.