Several streets in Washington will be closed starting as early as Thursday as officials put up fencing ahead of a rally on Saturday where demonstrators plan to gather in support of those arrested during the Jan. 6 insurrection by a pro-Trump mob.

According to an email sent to U.S. Senate staff on Wednesday and obtained by The Washington Post, crews are putting up fencing in areas around the Capitol, which was attacked on Jan. 6 by supporters of President Donald Trump who were trying to overturn President Biden’s election victory.

The fencing will run along Independence and Constitution avenues from First Street NE to First Street NW. Crews started to put up some of the fencing Wednesday night and are expected to finish installing it Thursday. The Supreme Court will also have a temporary fence around its perimeter, according to the email.

D.C. police said some streets in the city will be closed and parking restrictions will be in place on Saturday. The closures and parking restrictions will start at 5 a.m. Saturday and go until midnight, officials said.

The following streets will be closed to traffic:

* Third Street NW from Constitution Avenue NW to Independence Avenue SW.

* Pennsylvania Avenue NW from Constitution Avenue NW to Third Street NW.

* Madison Drive NW from Fourth Street SW to Third Street NW.

* Jefferson Drive SW from Fourth Street SW to Third Street SW.

* Maryland Avenue SW from Independence Avenue SW to Third Street SW.

There will also be no parking allowed on the following streets:

* Third Street from Constitution Avenue NW to Independence Avenue SW.

* Constitution Avenue from Third Street NW to Louisiana Avenue NW.

* Pennsylvania Avenue from Constitution Avenue NW to Third Street NW.

* Maryland Avenue from Independence Avenue, SW to Third Street SW.

* I Street from 15th Street NW to 17th Street NW.

* H Street from 15th Street NW to 17th Street NW.

* 17th Street from Constitution Avenue NW to L Street NW (west side of Farragut Square).

* 17th Street from I Street NW to K Street NW (east side of Farragut Square).

* 15th Street from Constitution Avenue NW to L Street NW (east side of McPherson Square).

* 15th Street from I Street to K Street NW (west side of McPherson Square).

* Connecticut Avenue from H Street NW to L Street NW.

* Vermont Avenue from H Street NW to L Street NW.