These Are The Most Powerful Photos From Today's Student Walkouts

A student holds up her hands while taking part in National School Walkout Day in Chicago, Illinois.

Delany Tarr, a senior at Marjory Stoneman Douglas High School, signs a poster as she gathers together with some of her fellow students after walking out of school in protest.

Students from Washington-Lee High School in Arlington, Virginia, join the National School Walkout while riding the Metro subway system to the US Capitol in Washington, DC.

Students from Marjory Stoneman Douglas High School join the National School Walkout in Parkland, Florida.

Students gather for a rally in Chicago, Illinois.

Students from Washington-Lee High School in Arlington, Virginia, march to the US Capitol in Washington, DC.

Students embrace as others raise their fists in a moment of silence for victims of school shootings in Los Angeles, California.

Hundreds of students gather in protest at the State Capitol in St. Paul, Minnesota.

Students march to the Capitol on Pennsylvania Avenue to call on Congress to act on gun violence prevention.

Palo Verde High School student Mallory McKissick holds a sign outside her school in Las Vegas, Nevada.

Students gather with their signs of protest in St. Paul, Minnesota.

Lyn Raja, a sophomore from Marjory Stoneman Douglas High School, holds a school phone clip as she gathers together with some of her fellow students.

Students hold a moment of silence during a rally in Chicago, Illinois.

Students hold up signs to protest gun violence during a walk-out in Lafayette Square in Washington, DC.

Hundreds of students gather at the State Capitol in St. Paul, Minnesota.

Students chant words of protest at a rally in Los Angeles, California.

A group of students raise their fists in a moment of silence for victims of school shootings in Los Angeles, California.