Democrats in the U.S. House of Representatives ended their overnight sit-in demanding gun reform Thursday morning after Republicans formally adjourned the legislative session until July 5.

More than a dozen Democrats, led by Rep. John Lewis (D-Georgia) remained on the chamber floor, although it is unclear how their efforts to force a vote on gun control will proceed as House Speaker Paul Ryan (R-Wis.) ended the session—earlier than scheduled.

As Politico reports, “The Wisconsin Republican entered the chamber at 10 p.m. to break up the protest by moving to a vote on unrelated legislation to override an Obama administration rule. Pandemonium ensued, a scene not witnessed on the House floor in years, if ever.”

Democrats, who shouted “Shame! Shame!” and “No bill, no break!” as business continued, slammed Republicans for being “silent for too long” about mass shootings in the U.S. The protest was mounted after the U.S. Senate failed to pass several measures that would have expanded background checks and prevented gun sales to people on two terrorist watch lists, including the controversial No Fly list, introduced in response to the attack on an LGBTQ nightclub in Orlando earlier this month that left 49 dead and 53 wounded.

“Today we’ve come a distance. We’ve made some progress. We’ve crossed a bridge today, but we have other bridges to cross,” Lewis said after the House adjourned. “The fight is an ongoing fight. We will not be happy, we will not be satisfied, we will not be pleased until we do something in a major way.”

Republicans, meanwhile, claimed the sit-in was nothing more than a PR stunt.