World War II veterans walked past open barricades at the World War II memorial on the National Mall Tuesday morning, according to multiple reports.

Busloads of veterans who flew into Washington on honor flights Tuesday arrived at the memorial honoring their service to find barricades closing the site.

The U.S. Park Service was required to close all national parks, including national memorials, under the government shutdown that began Tuesday.

“We’re seeking guidance on how to respond,” the Park Police said, according to Stars and Stripes reporter Leo Shane III.