PHOTOS: Protestors gather for March for Life in Washington, D.C.

Anti-abortion activists march up Constitution Avenue en route to the Supreme Court in Washington, Friday, Jan. 27, 2017, during the 44th annual March For Life. (Carolyn Kaster/AP)

Anti-abortion activists converge in front of the Supreme Court in Washington, Friday, Jan. 27, 2017, during the annual March for Life. (Andrew Harnik/AP)

Sarah Grim of Fayetteville, N.C., left, and Bethany Bostron of Williamsburg, Va., watch participants in the March for Life march near the White House in Washington, Jan. 27, 2017. (Manuel Balce Ceneta/AP)

Participants in the March for Life cheer as they march to Supreme Court from the National Mall in Washington, starts Friday, Jan. 27, 2017. (Manuel Balce Ceneta/AP)

Participants in the March for Life march near the National Mall in Washington, Friday, Jan. 27, 2017 (Manuel Balce Ceneta/AP)

Pro-life supporters gather at the Washington Monument to hear Vice President Mike Pence speak at the March for Life rally on January 27, 2017. (TASOS KATOPODIS/AFP/Getty Images)

Pro Life supporters gather at the Washington Monument to hear Vice President Mike Pence speak at the March for Life rally on January 27, 2017 in Washington, D.C. (TASOS KATOPODIS/AFP/Getty Images)

Pro Life supporters gather at the Washington Monument to hear Vice President Mike Pence speak at the March for Life rally on January 27, 2017 in Washington, DC. (TASOS KATOPODIS/AFP/Getty Images)

Kellyanne Conway, counselor to President Donald Trump, addresses a rally on the National Mall before the start of the 44th annual March for Life January 27, 2017. (Chip Somodevilla/Getty Images)

Vice President Mike Pence, with his wife Karen Pence, center, waves while speaking at the March for Life on the National Mall in Washington, Friday, Jan. 27, 2017. (Manuel Balce Ceneta/AP Photo)

A photo shows the crowd at the March for Life in Washington, D.C. on Friday, Jan. 27. (anniecyo/Instagram)

Students from Mary Help of Christians Academy in North Haledon, NJ, gather in Washington, D.C. for March for Life on Friday, Jan. 27. (Sister B/Instagram)

A group from Diocese Of Sioux Falls in South Dakota attends the March for Life in Washington, D.C. on Friday, Jan. 27. (Jon Konz/Instagram)

Anti-abortion advocates gather in Washington, D.C. for March for Life. (jaimelouuu/Instagram)

Anti-abortion advocates gathered in Washington, D.C. on Friday for the March for Life, an annual event for abortion rights opponents.

The event happens in Washington, D.C. each year around the anniversary of the 1973 Roe v. Wade Supreme Court case, which legalized abortion.

Vice President Pence addressed the crowd, making him the first vice president to speak at the event.

He said President Donald Trump will "work with the Congress to end taxpayer funding of abortion and abortion providers, and we will devote those resources to health care services for women across America."

Kellyanne Conway also spoke at the event. The rally was followed by a march through the streets of the capital.

The Associated Press contributed to this report.