Barack Obama will move on Tuesday to close the loophole which allows weapons to be sold at gun shows and on the internet without any background checks.

Obama will set out his plans for greater resources for the FBI and the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), including 200 new ATF agents and investigators, and a new center to track illegal online firearms trafficking.

Previewing the announcement, the White House made clear “it doesn’t matter where you conduct your business – from a store, at gun shows or over the internet: if you are in the business of selling firearms, you must get a license and conduct background checks.”

Speaking before a meeting with senior officials, Obama promised that sweeping new gun control measures would save lives and spare families from mass shootings.

“We have to be very clear that this is not going to solve every violent crime in this country or prevent every mass shooting and is not going to keep every gun out of the hand of a criminal,” Obama said after a meeting with attorney general Loretta Lynch to review her recommendations. “It will potentially save lives and spare families the pain and the extraordinary loss that they have suffered as a consequence of firearms getting into the hand of the wrong people,” he added.