U.S. President Barack Obama on Wednesday will announce what the White House describes as “concrete proposals” aimed at curbing gun violence in the United States.

The White House said Tuesday Mr. Obama and Vice President Joe Biden will be joined by children who wrote to the president to voice their concerns about the issue and school safety after last month's school shooting in Newtown, Connecticut, left 20 young children and six adults dead.

The plan is based on recommendations from the vice president, who was appointed to study the issue and meet with various groups on all sides of the issue.

White House press secretary Jay Carney told reporters the package will include legislative and executive measures. He said several of the main components will require congressional approval. President Obama has acknowledged a tough fight in the deeply divided Congress over the issue of guns. But Monday he said lawmakers will have to “examine their own conscience” and “we're going to have to come up with answers that set politics aside.”

Some House Democrats say Vice President Biden has identified 19 potential actions President Obama could take without legislation.

The four million-member National Rifle Association has said it will fight any legislation to limit access to guns and ammunition.

Mr. Obama's proposals are expected to include recommendations to address violence in entertainment and video games.