The House will vote on an anti-terrorism measure next week that would prevent terror suspects from purchasing guns, House Speaker Paul Ryan told GOP lawmakers Thursday.

In a conference call with the House Republican conference, Ryan, R-Wis., outlined a plan to vote on a legislative package that responds to the recent terrorist shootings, including limiting access to firearms by those on federal terror watch lists.

"The terrorism package will include measures to disrupt radicalization and recruitment, and a provision to prevent suspected terrorists from buying guns," a GOP aide said.

The measure comes after Ryan earlier this month ordered a House terrorism task force "to look at additional legislative options," following the Orlando terrorist shooting that killed 49 people and wounded 53 others.

The move comes as Democrats threaten to continue "sit-in" demonstrations on the House floor until the GOP majority allows votes on two specific Democratic gun control measures. The demonstrations forced the House GOP to gavel out early for a week-long recess earlier this month.

Ryan told GOP lawmakers in the Thursday conference call that the leadership is consulting with the House Sergeant-at-Arms and the House Parliamentarian and could take action against the Democrats' demonstrations if they continue, but he did not say specifically what might occur.

"The speaker said that the leadership is gathering all the facts and evaluating all of their options," the leadership aide said. "This is going to be a thorough and ongoing review. House Republicans will take any action we deem necessary."

Ryan also told GOP lawmakers that as part of the House effort to respond to mass shootings, lawmakers will consider legislation authored by Rep Tim Murphy, R-Pa., that would help families deal with mental illness and reform federal mental healthcare programs.

Democrats warned that they would not support the GOP bill if it mirrors a Senate version sponsored by Sen. John Cornyn, R-Texas, and endorsed by the NRA, that would delay gun purchases by those on the terror watch list. The Cornyn will would give the government three days to prove in court why the sale should not be permitted.

"House Democrats will keep up our efforts to push for the Majority to allow a vote on gun violence legislation, but bringing up a bill authored by the NRA just isn't going to cut it," said Drew Hamill, spokesman for House Minority Leader Nancy Pelosi, D-Calif.