More than 20,000 people were estimated to have attended the "March for Our Lives" rally in Parkland, Fla., on Saturday, according to The Associated Press.

The march, which passed by Marjory Stoneman Douglas High School, was one of dozens of rallies across the country honoring the victims of gun violence and calling for gun control.

According to The Associated Press, when protesters reached the high school they held a moment of silence to honor the 17 people killed in a shooting at the school last month.

"March for Our Lives" rallies, organized by the Parkland students who survived the shooting, drew hundreds of thousands of participants across the country. The march held in Washington, D.C., was estimated by organizers to have drawn 800,000 people.

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Other cities across the country including Boston, Chicago, Houston and New York City saw crowds numbering in the tens of thousands marching in protest of gun violence and demanding action on gun laws.

The day was marked with somber speeches and emotional pleas for changes to gun policy, but many also expressed hope in the students leading the charge for gun control.