Special security fencing designed to prevent being climbed was to go up around the White House complex and remain until after Election Day, the National Park Service said Monday. It cited a request from the Secret Service.

The Park Service said temporary restriction of access to park areas near the White House followed a Secret Service request “regarding the unique security requirements with the upcoming Presidential election, and the need to quickly de-escalate potentially violent encounters, protect park resources, and maintain public safety.”

Unless law enforcement requires closing the White House complex, the fencing “will not limit the public’s ability to demonstrate,” the Park Service said.

The closures were described as “temporary area closures” and “temporary security modifications.”

The Park Service said the “anti-scale” fencing would go into place at 6 p.m. Monday and remain through about 6 a.m. Sunday. Work was proceeding Monday night, with about 7,500 feet of fence going up.

The Park Service said fencing was to be installed on the west sidewalk of 15th Street NW between H Street and Constitution Avenue, the east sidewalk of 17th Street NW between H Street and Constitution Avenue, and the north side of Constitution Avenue between 15th and 17th streets. Part of the sidewalks would be open for pedestrians, the Park Service said.

The changes made at Lafayette Square last summer would remain, with gates installed to allow the public to enter and leave. Pedestrian gates would be placed to allow access to Pennsylvania Avenue NW and enclosed park areas including the Ellipse, the Park Service said.