A Buffalo police officer was caught on video shoving a 75-year-old man to the ground, causing him to bang his head on the sidewalk and start bleeding from the back of skull.

The video shows the elderly man, wearing a face mask, walk up to a line of riot-gear clad police officers near the City Hall building soon after a curfew went into effect on Thursday.

The officers shout out to the man to move back, then one of them pushes him, causing him to stumble backward and slam his head into the pavement, according to the video.

The man was rushed to nearby hospital by medics who responded and is in serious but stable condition, Buffalo Mayor Byron Brown said.

Two officers involved in the incident have been suspended without pay, he added.

“I was deeply disturbed by the video, as was Buffalo Police Commissioner Byron Lockwood,” Brown said in a statement.

“He directed an immediate investigation into the matter, and the two officers have been suspended without pay,” he added.

Governor Andrew Cuomo said in a tweet he agreed the cops should be suspended.

“I’ve spoken with Buffalo @MayorByronBrown and we agree that the officers involved should be immediately suspended pending a formal investigation.

Police Officers must enforce — NOT ABUSE — the law,” he added.

Erie County Executive Mark Poloncarz said in a tweet Thursday night that the footage “sickens” him.

“I’ve seen videos of the incident in front of Buffalo’s City Hall in which an older protester appears to have been shoved by police, fell backwards and suffered a serious head injury,” he wrote.

The incident happened soon after a protest finished in the area where five people were arrested?