Students of Marjory Stoneman Douglas High School walked out of their schools in Parkland, Florida, on Friday, as part of a nationwide walkout calling for gun control laws on the 19th anniversary of the Columbine shooting.

Students can be seen as they walk out of the school carrying pro gun law banners. Among the students was David Hogg, who’s become one of the most well-known activists since the Parkland shooting.

“The sick thing is that we’ve just become complicit to it and expected these things to happen and that’s why they’ve continued,” Hogg said, and continued “But now that we’re standing up, so long as we get out and vote, that’s the most important message here.”

Since the school shooting that occurred at Stoneman Douglas High on February 14, activism for gun control has been on the rise, with similar walkouts staged at the large March for Our Lives held in Washington DC and other cities around the world.