7,000 children's shoes are lined up on the US Capitol lawn in a stunning memorial commemorating childhood victims of gun violence

Dozens of activists stood in front of the shoes on Tuesday, holding signs with slogans like "#NOTONEMORE" and "7000 KIDS KILLED"

Researchers have estimated that 1,300 children in the US die each year after being shot, and another 5,790 are injured.

Source: Pediatrics

Avaaz came up with the 7,000 figure by multiplying the estimated rate of fatalities by the five years and three months that have passed since the Sandy Hook shooting in December 2012.

Source: NBC 4 Washington

"What we're saying is killing has to stop," Avaaz deputy director Emma Ruby-Sachs said. "The majority of gun owners want gun control and we're putting lives of these children at the feet of Congress and saying, 'Catch up, act now, let's end this.'"

Source: Fox 5 DC

The memorial is set to remain on the southeast lawn of the US Capitol until 2 p.m. on Tuesday.

Source: Fox 5 DC

In addition to Wednesday's school walkout, student activists have also organized a national March For Our Lives demonstration set for Saturday, March 24.

Source: Business Insider