The incident occurred 120 kilometers from Washington, on Rehoboth Beach on the Atlantic coast of Delaware.
The plane flew into the limited airspace (this is called standard practice) in this area by mistake, in connection with which a brief evacuation of the president and first lady was carried out.
Biden and his wife subsequently returned to the house. Nothing threatened them, the White House stressed.
According to the agency, investigators are now investigating why the plane fell into the zone of the restrictions and why its pilot “was not on the proper radio channel and did not follow published instructions.”
A no-fly zone within a radius of 10 miles (about 17 km) around the beach town of intelligence agencies reported earlier in the week, writes Associated Press.
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