“It is not a solution to tell federal officers to leave when there continues to be attacks on federal property and personnel,” U.S. Attorney Billy Williams said. ”We are not leaving the building unprotected to be destroyed by people intent on doing so.”

Local and state officials said the federal officers are unwelcome.

Meanwhile, the mayors of Portland and five other major U.S. cities appealed Monday to Congress to make it illegal for the federal government to deploy militarized agents to cities that don’t want them.

“This administration’s egregious use of federal force on cities over the objections of local authorities should never happen,” the mayors of Portland, Seattle, Chicago, Kansas City, Albuquerque, New Mexico, and Washington wrote to leaders of the U.S. House and Senate.