The Nashville shooter, a 28-year-old who was fatally shot by officers at the scene, had at least two semi-automatic rifles and a handgun, police said initially. Police later said the shooter had one semi-automatic rifle and two handguns.

Biden, a Democrat, has repeatedly called for a renewed assault weapons ban and stricter rules on gun sales, measures that need to pass Congress.

The House of Representatives is controlled by Republicans; any new gun safety legislation is unlikely this year, key lawmakers say.

“How many more children have to be murdered before Republicans in Congress will step up and act to pass the assault weapons ban, to close loopholes in our background check system or to require the safe storage of guns?” White House spokesman Karine Jean-Pierre told reporters before Biden spoke.