An abortion rights protest occurred in downtown L.A. Tuesday after a leaked Supreme Court document suggesting Roe v. Wade would be overturned.

In the afternoon, a rally led by Rise Up 4 Abortion Rights L.A. saw several women speak on the possibility of Roe V. Wade being struck down, federally, and held signs that read, “Abortions on demand and without apology.”

The rallies are expected to continue, with the Rise Up 4 Abortion Rights organization calling for a nationwide protest on May 14.

“We need more of this. We need more people, more organizations rallying together to call people into the streets,” the organization wrote on an Instagram post.

As darkness fell upon downtown L.A., several more protesters joined the rally and marched through the streets and into Pershing Square.

At around 9:30 p.m., LAPD issued a citywide tactical alert after protesters allegedly began throwing rocks at and bottles at law enforcement officials and injuring one.

“Officers attempted to communicate, clear and provide a dispersal order to the group. The crowd began to throw rocks & bottles at officers,” LAPD tweeted on Tuesday night. “One officer injured (unknown extent). Citywide tactical alert has been declared.”

Videos posted by protesters on the ground showed officers from the Department of Homeland Security make their way to Pershing Square, pushing protesters and yelling to “back up,” as protesters yelled back for them to leave.

The protest also coincided with a march in Washington D.C., with several hundreds of people rallying outside of the U.S. Supreme Court building.

The rallies have come after a leaked drafted opinion by Supreme Court Justice Samuel Alito suggested the court had ruled on a majority to strike down the case that brought forth national abortion rights.

Alito wrote that both Roe v. Wade and the 1992 Planned Parenthood v. Casey decisions were, “egregiously wrong from the start.”

On Tuesday, Chief Justice John Roberts confirmed the legitimacy of the leaked document and called for an investigation on its distribution.

“To the extent this betrayal of the confidences of the Court was intended to undermine the integrity of our operations, it will not succeed,” Roberts said in a statement. “The work of the Court will not be affected in any way.”

It is not clear if and when the court will announce its ruling and changes may still be made until that time.

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