According to officials, at least three small aircraft violated temporary flight restrictions on Sunday near Bedminster, New Jersey, while U.S. President Donald Trump was spending the weekend at his golf club, Fox News reports.

The North American Aerospace Defense Command (NORAD) said its F-16 fighter jets intercepted two civilian aircraft, then confirmed that a third aircraft also triggered an alert as Trump was preparing to leave the area.

The third incident apparently delayed Trump's departure by about 13 minutes.

According to officials, the first two small aircraft were safely escorted out of the restricted area by NORAD aircraft. The third aircraft “complied with instructions before NORAD intervention was required.”