Bidens 'shocked' by Highland Park shooting as White House marks July Fourth

President Joe Biden began Independence Day by sharing a message that looked to the country's future, but quickly had to respond to another mass shooting in the United States.

"Jill and I are shocked by the senseless gun violence that has yet again brought grief to an American community on this Independence Day," the President said in a statement Monday after at least six people were killed in a shooting in Highland Park, Illinois, during a July Fourth parade.

Biden noted that he had "surged Federal law enforcement to assist in the urgent search for the shooter, who remains at large at this time," and pointed to the gun safety legislation he recently signed into law. "But there is much more work to do, and I'm not going to give up fighting the epidemic of gun violence," he added.

Later on Monday, Biden declined to say whether stricter gun laws would have prevented the deadly shooting when pressed by CNN's MJ Lee. "We don't know the circumstances yet," he said.

Vice President Kamala Harris, who's in California for the holiday, touted the recently signed legislation in her own statement, but added, "Today's shooting is an unmistakable reminder that more should be done to address gun violence in our country."