Thousands of people participated in "March for Our Lives" rallies in Washington and cities across the United States, drawing attention to school violence and what they see as a need for stricter gun control.
'March for Our Lives' Protests Call for Stricter Gun Laws

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People demonstrate to show solidarity for the 'March For Our Lives' movement, in Hamburg, Germany, Saturday, March 24, 2018. (Markus Scholz/dpa via AP)

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U.S. Rep. John Lewis leads a march of thousands through the streets of Atlanta on Saturday, March 24, 2018.

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People take part in a "March For Our Lives" rally Saturday, March 24, 2018, in Parkland, Fla.

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Pro-gun marchers gather during a rally designed by organizer to advocate for fortified schools and more armed teachers Saturday, March 24, 2018, at the Utah State Capitol, in Salt Lake City.