U.S. Capitol Police will reinstall fencing around the Capitol grounds ahead of a planned rally on Sept. 18. The demonstration is in support of people arrested in connection with the Jan 6. insurrection.

The plan was approved Monday by the Capitol Police Board, an oversight body composed of the Senate sergeant at arms, the House sergeant at arms, the USCP chief and the architect of the Capitol.

USCP did not release details of the plan, or where exactly fencing would be erected. According to an earlier report by the Associated Press, which cites an anonymous source familiar with the discussions, the fencing will surround the Capitol and Supreme Court, but not the neighboring congressional office buildings.

The Sept. 18 rally, dubbed “Justice for J6,” is in support of those arrested during the violent insurrection at the Capitol on Jan. 6. The group Look Ahead America is behind the rally, which organizers have reportedly assured officials will not be violent.

“We are here to protect everyone’s First Amendment right to peacefully protest,” said Tom Manger, chief of the USCP.  “I urge anyone who is thinking about causing trouble to stay home. We will enforce the law and not tolerate violence.”

The Capitol Police Board also issued an emergency declaration that will allow USCP to deputize law enforcement officers from other departments as USCP special officers during the Sept. 18 demonstration.

“It’s hard for me to criticize them for being what I think is over-prepared,” D.C. Delegate Eleanor Holmes Norton told DCist/WAMU. Norton has been highly critical of police in the past for leaving up fencing for more than six months following the Jan. 6. insurrection, and has introduced a bill to ban permanent fencing. But in this case, she said, “I think I can understand their reaction this close to Jan. 6.”

Norton says she has not been briefed on fencing plans. She said she’d be concerned “if this were to become a habit.”

“I can’t believe we’d want to tell the world that we can’t protect our own Capitol except by fencing it in every time people want to demonstrate,” Norton said. “Not only does it send the wrong message, it sends a message that’s un-American and that is unnecessary.”

Norton isn’t the only D.C. resident opposed to fences around the Capitol — many celebrated the removal of fencing in July. “I don’t even know how to describe how horrible and stressful it felt to wake up to an eight foot fence with razor wire on top of it,” one longtime Capitol Hill resident told DCist/WAMU at the time. “It just didn’t feel like my neighborhood at all.”

“We want to reassure everyone these are temporary measures to ensure everyone’s safety,” said Manger in the USCP press release. “We are extremely grateful for the support we continue to receive from the local community and our Congressional stakeholders as we carry out our critical mission.”

Only 700 people are expected to attend next weekend’s rally, according to a permit application obtained by the Post, compared to as many as 10,000 on Jan. 6. Meanwhile, it’s not clear whether The Proud Boys, a far-right organization that’s been defined as a hate group by the Southern Poverty Law Center, will make an appearance: Washingtonian reported that the group’s account on the messaging app Telegram called the rally “a guaranteed disaster,” and discouraged members from attending. The group has been tied to pro-Trump rallies in D.C. that turned violent.

At least one counter-protest is planned that day, at Freedom Plaza.

U.S. Capitol Police didn’t immediately respond to a request for comment. The Metropolitan Police Department has said it will activate its entire force next Saturday in preparation for the rally.

This story was updated to include new information from USCP.