Buffalo Mayor Byron Brown is responding to the incident involving a police officer who appears to shove a 75-year-old protester. The interaction was caught on video.

It happened Thursday evening in downtown Buffalo. The protester fell backward and hit his head on the sidewalk. He was hospitalized with a serious head injury.

On Friday morning, Mayor Brown spoke with Spectrum News in a lengthy phone interview. Click on the video above to hear what he had to say.