A coalition of abortion rights organizations are planning a demonstration on the National Mall this Saturday as part of a larger day of national action following last week’s leak of a Supreme Court draft opinion signaling the Court plans to overturn Roe v. Wade.

The national groups Planned Parenthood Federation of America, Planned Parenthood Action Fund, Women’s March, MoveOn, and Ultraviolet are organizing the event, called Bans Off DC, which will begin with a rally near the Washington Monument and end with a march to the Supreme Court. According to the event page, the rally will begin at 12 p.m. Several speakers will take the stage starting at 12:30 — including some local faces. Ward 4 Councilmember Janeese Lewis George and local activist and co-founder of Harriet’s Wildest Dreams Nee Nee Taylor will speak on Saturday, according to a press release.

The march will begin at 2 p.m., starting on the northeast side of the monument (near Constitution Avenue and 15th Street NW), and continuing east down Constitution Avenue, ending at the Supreme Court. The D.C. Police Department has not announced a list of road closures, but encourages “motorists to avoid the downtown area” and take public transportation on Saturday when possible. Also on the Mall on Saturday is the D.C. Fire and EMS Anniversary Parade, which will close several downtown streets to traffic throughout the morning and into the afternoon, although the parade route should not overlap with the march. Up-to-date traffic information can be found at the D.C. Police Traffic Twitter.

According to the National Park Service’s permit for the event, issued Wednesday morning, the organizers estimate a crowd size of 17,000 people.

Local activists have demonstrated outside the Supreme Court since the news broke and in recent days some have taken their protests to the doorsteps of justices homes. Over the weekend, people gathered in front of Justice Brett Kavanaugh’s Chevy Chase house and on Tuesday night a group marched through Northern Virginia to where Justice Samuel Alito lives in Alexandria. Local activist organization ShutdownDC has not posted any official events for Saturday, but ShutdownDC tells DCist they plan to attend the rally.

After last week’s protests, officials installed several security measures around the Supreme Court, including an eight-foot-tall non-scalable fence and concrete barriers blocking portions of the street surrounding the Court. So far, the demonstrations for abortion rights have been largely peaceful.

This post has been updated with additional details.