Activists lineup thousands of children's shoes outside U.S. Capitol lawn

(NBC) - Thousands of shoes were laid out on the lawn of the U.S. Capitol, representing children killed by gun violence since the Sandy Hook school shooting.

About 7,000 shoes were lined up for a memorial movement called “Monument for Our Kids”.

A group of activists used the shoes to symbolize the amount of American children who lost their lives due to gun violence since December 14, 2012.

On that day, a total of 20 children and six adults were killed in the shooting at Sandy Hook Elementary School in Connecticut.

Organizers say they wanted to bring the call for gun control to congress’ doorstep.

The shoes will be donated when the monument is dismantled.