PHOTOS: Chicago's March for Our Lives

Shayna Ungerleider, 17, of Northbrook (center) attend the March for Our Lives rally in Union Park. | Ashlee Rezin/Sun-Times

Thousands of students and activists filled Union Park on Saturday morning for the March for Our Lives, an event that aims to stop mass shootings and curb gun violence in reaction to the attack at Marjory Stoneman Douglas High School in Parkland, Florida.

Parents and children held up signs that said “Never again” and “I stand with the students.”

Follow along with the protest through the afternoon.

Chicago’s March for Our Lives: Everything you need to know

March for Our Lives, Chicago. | Ashlee Rezin/Sun-Times

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Shayna Ungerleider, 17, of Northbrook (center) attend the March for Our Lives rally in Union Park. | Ashlee Rezin/Sun-Times

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Protesters rally on Saturday morning in Union Park calling for tighter gun control laws in a March for Our Lives rally. | Ashlee Rezin/Sun-Times

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March for Our Lives, Chicago | Ashlee Rezin/Sun-Times

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Protesters fill Union Park on Saturday morning for the March for Our Lives rally. | Provided by ABC-7 Chicago

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Former 3rd Congressional District candidate Marie Newman joins the crowd at the March for Our Lives rally on Saturday in Union Park. | Ashlee Rezin/Sun-Times

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Protesters cheer at the March for Our Lives rally in Union Park on Saturday. | Ashlee Rezin/Sun-Times

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Josiah Shreve, an 8-year-old from Orland Park, holds a sign declaring “Books, Not Bullets” at the March for Our Lives rally on Saturday in Union Park. | Ashlee Rezin/Sun-Times

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Protesters rally on Saturday morning in Union Park calling for tighter gun control laws in a March for Our Lives rally. | Ashlee Rezin/Sun-Times

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Protesters step off in the March for Our Lives from Union Park on Saturday. | Ashlee Rezin/Sun-Times

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Thousands march through the streets of Chicago, calling for tighter gun control laws after a March for Our Lives rally in Union Park, Saturday, March 24, 2018. | Ashlee Rezin/Sun-Times

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Thousands march through the streets of Chicago, calling for tighter gun control laws after a March for Our Lives rally in Union Park, Saturday, March 24, 2018. | Ashlee Rezin/Sun-Times

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Thousands march through the streets of Chicago, calling for tighter gun control laws after a March for Our Lives rally in Union Park, Saturday, March 24, 2018. | Ashlee Rezin/Sun-Times

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Thousands march through the streets of Chicago, calling for tighter gun control laws after a March for Our Lives rally in Union Park, Saturday, March 24, 2018. | Ashlee Rezin/Sun-Times

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Thousands march through the streets of Chicago, calling for tighter gun control laws after a March for Our Lives rally in Union Park, Saturday, March 24, 2018. | Ashlee Rezin/Sun-Times

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Thousands march through the streets of Chicago, calling for tighter gun control laws after a March for Our Lives rally in Union Park, Saturday, March 24, 2018. | Ashlee Rezin/Sun-Times

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Thousands march through the streets of Chicago, calling for tighter gun control laws after a March for Our Lives rally in Union Park, Saturday, March 24, 2018. | Ashlee Rezin/Sun-Times

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Thousands march through the streets of Chicago, calling for tighter gun control laws after a March for Our Lives rally in Union Park, Saturday, March 24, 2018. | Ashlee Rezin/Sun-Times

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Thousands march through the streets of Chicago, calling for tighter gun control laws after a March for Our Lives rally in Union Park, Saturday, March 24, 2018. | Ashlee Rezin/Sun-Times

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A group of girls join hands as they listen to speakers in Union Park calling for tighter gun control laws in a March for Our Lives rally, Saturday, March 24, 2018. | Ashlee Rezin/Sun-Times

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Thousands gather in Union Park, calling for tighter gun control laws in a March for Our Lives rally, Saturday, March 24, 2018. | Ashlee Rezin/Sun-Times

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Thousands march through the streets of Chicago, calling for tighter gun control laws after a March for Our Lives rally in Union Park, Saturday, March 24, 2018. | Ashlee Rezin/Sun-Times

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Thousands march through the streets of Chicago, calling for tighter gun control laws after a March for Our Lives rally in Union Park, Saturday, March 24, 2018. | Ashlee Rezin/Sun-Times

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Thousands march through the streets of Chicago, calling for tighter gun control laws after a March for Our Lives rally in Union Park, Saturday, March 24, 2018. | Ashlee Rezin/Sun-Times | Ashlee Rezin/Sun-Times

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U.S. Sen. Dick Durbin greets protesters in Union Park who gathered to call for tighter gun control laws in a March for Our Lives rally, Saturday, March 24, 2018. | Ashlee Rezin/Sun-Times

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