White House national security adviser Robert O’Brien on Sunday denied that there’s “systemic racism” across police agencies in the U.S., despite numerous incidents in which officers have harassed or killed unarmed Black men, including George Floyd in Minneapolis earlier this week.

Floyd died Monday in Minneapolis after a police officer knelt on his neck, sparking nationwide protests.

Mathias was released hours after being taken into custody by New York City police officers on Saturday.

Earlier on Sunday’s “State of the Union,” Melvin Carter, the mayor of St. Paul, Minnesota, dismissed claims that there are just a few “bad apples” within U.S. police forces.

He pointed to bystander video that showed four police officers ignoring Floyd’s statements that he couldn’t breathe as one of them knelt on his neck.