A plane came dangerously close to the plane carrying President Trump.

US authorities have begun an investigation into the unexpected approach of a plane to US President Donald Trump's Boeing-747 "Air Force One", ABC television channel reported.

Air Force One of the US President.

According to ABC, the incident occurred in the sky over Florida on Friday (February 3), when Mr. Trump flew from Washington to his Mar-a-Lago estate during the weekend.

"As some sources reported, the plane flew parallel to Air Force One as it approached Palm Beach, so it should have kept at least 3 nautical miles (about 5.5 km) away from President Trump's plane," according to ABC.

Another source told reporters that both crews were able to "get into visual contact". A third source said that all crews were in constant contact with air traffic control and "there was no risk of collision".

Exactly which plane approached "Air Force One" and at what distance, ABC did not specify.

According to Sputnik