A bipartisan group of senators announced Sunday a proposal to combat gun violence, stemming from a concerted effort on Capitol Hill to respond to a string of deadly mass shootings in the United States.

The framework, the result of talks led by Sen. Chris Murphy (D-CT) and Republican Sen. John Cornyn (R-TX), includes some reforms on access to firearms and cracking down on illegal sales, along with funding for mental health and school security, and measures meant to protect victims of domestic violence.