Internal Affairs is investigating an NYPD officer who injured a protestor during Tuesday’s anti-police brutality protests, DNAinfo reports. The as-yet-unidentified officer is caught on video shoving Elsa Waithe, causing her to fall onto a metal tree guard. Waithe was hospitalized with injuries to her ribs.

Waithe’s friend, activist Keegan Stephen, visited her at Methodist Hospital.

“I just broke down crying after seeing her in the hospital,” he told DNAinfo. “She could barely move in the hospital, she could barely stand.”

(Photo: Enbion Micah Aan)