WATCH: Biden denounces assassination attempt against Trump at HBCU conference in Philadelphia

President Joe Biden on Monday again decried the assassination attempt against former President Donald Trump and said America must work to stop the scourge of political violence.

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“America has suffered too many times the tragedy of an assassin’s bullet,” Biden said at the start of an address to the National HBCU Week Conference in Philadelphia. “It solves nothing. It just tears the country apart. We must do everything we can to prevent it and never give it any oxygen.”

The president’s comments came after Trump said, without evidence, that Biden and Vice President Kamala Harris inspired another apparent attempt on his life, deriding their criticism of him as a threat to democracy despite his own long history of inflammatory campaign rhetoric and advocacy for jailing or prosecuting his political enemies.

“Their rhetoric is causing me to be shot at, when I am the one who is going to save the country and they are the ones that are destroying the country — both from the inside and out,” Trump said in comments to Fox News Digital.

Biden in his speech added that Acting Director Secret Service Ronald Rowe, Jr. was in Florida “assessing what happened and determining whether any further adjustments need to be made to ensure” Trump’s safety.