The C-40 plane the intruder walked into is the Air Force equivalent of a 737 airliner, painted in the U.S. government’s blue and white color scheme, and is designed as an “office in the sky” for senior military, government leaders and members of Congress. The plane is outfitted with secure communications, sleeping quarters and work tables, according to the U.S. Air Force.

The intruder was eventually detained by base security forces, booked by Air Force Office of Special Investigations and given a federal summons for trespassing, Joint Base Andrews said earlier in a statement. He was turned over to local law enforcement in Maryland because he had two outstanding warrants, the statement said.

There was no indication the suspect had links to extremist groups, base officials said.