GOP leaders are calling for those involved in the ambush of decorated former NCAA Division 1 swimmer Riley Gaines to be "held accountable," after the 12-time All American collegiate athlete said she was physically attacked following a speaking engagement at San Francisco State University on Thursday night. 

Gaines, a former swimmer at Kentucky University who has been an advocate for women’s rights amid an ongoing debate surrounding transgender athlete participation, posted a video to social media showing a group of protesters surrounding her after delivering a speech at a Turning Point USA and Leadership Institute event that took place on San Francisco State’s campus.

Riley Gaines

Former University of Kentucky swimmer Riley Gaines speaks during a rally on Thursday, Jan. 12, 2023, outside the NCAA Convention in San Antonio. (AP Photo/Darren Abate)

She said in a tweet that she was "ambushed and physically hit twice by a man," and was eventually escorted out by law enforcement. 

WOMEN'S GROUP SLAMS AMBUSH OF EX-KENTUCKY SWIMMER RILEY GAINES AT SAN FRANCISCO STATE: 'ABSOLUTELY LUDICROUS'

Republican leaders have since condemned the incident and called for those involved to be held accountable. 

"San Francisco State University and law enforcement must take immediate action to hold those who assaulted Riley accountable," Sen. Marsha Blackburn, R-Tenn., told Fox News Digital Friday. "We will not allow the violent radical left mob to silence us."

"This is truly shameful behavior," Sen. Cindy Hyde-Smith, R-Miss., added on Twitter. "Riley Gaines has done nothing more than speak out about the dangers of allowing biological men to compete in women's sports, and is met with violence. Unacceptable." 

Sen. Joni Ernst, R-Iowa also backed Gaines in a statement to Fox News Digital.

"I stand with Riley and her message: biological men should not be allowed to compete in women’s sports," she said. 

Joni Ernst addresses media

Sen. Joni Ernst (R-IA) talks to reporters following the weekly Senate Republican policy luncheon in the U.S. Capitol on Feb. 14, 2023 in Washington, D.C.  (Chip Somodevilla/Getty Images)

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"Our female athletes deserve fairness, safety, and the ability to win top scholarships and titles. No amount of violence and harassment from the radical Left will stop strong women like Riley from standing up for the truth and what is right."

Sen. Katie Britt, R-Ala., called out the "radical mob rule" and instead encouraged "civil debate" in a statement to Fox News Digital. 

"I stand with Riley Gaines. Women’s sports are under attack by the far left, and Riley should be applauded for defending the rights of girls and young women across America to compete fairly and safely. Political violence has no place in the United States. Those responsible must be held accountable. Our country should encourage civil debate and discourse, not tolerate radical mob rule that seeks to silence political opposition."

UPenn athlete Lia Thomas at nationals

University of Pennsylvania swimmer Lia Thomas, left, and Kentucky swimmer Riley Gaines react after finishing tied for 5th in the 200 Freestyle finals at the NCAA Swimming and Diving Championships on March 18, 2022 at the McAuley Aquatic Center in Atlanta. (Rich von Biberstein/Icon Sportswire via Getty Images)

Former Vice President Mike Pence also spoke out social media, calling Thursday night's incident the "latest attack on Free Speech and Conservative Values on a college campus." 

South Dakota Gov. Kristi Noem also reacted to the now-viral video and commended Gaines for her "courage and commitment in standing up for women."

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Gaines’ husband, Louis Barker, told Fox News Digital that she was left barricaded in a room for nearly three hours and was hit "multiple times by a guy in dress."

No arrests were made by law enforcement following the alleged assault. 

The University Police Department (UPD) at San Francisco State University issued the following statement to Fox Friday morning: "We are conducting an ongoing investigation into the situation. There were no arrests related to the event. The disruption occurred after the conclusion of the event which made it necessary for UPD officers to move the event speaker from the room to a different, safe location."

The incident involving Gaines followed a Supreme Court’s decision to allow a 12-year-old transgender girl in West Virginia to continue competing on her middle school’s girls sports teams while a lawsuit over a state ban continues.