Two Buffalo police officers have been suspended after a video emerged of  a 75-year-old man being shoved to the ground down during a Black Lives Matter protest on Thursday.

A video has circulated showing the unidentified white man approaching the heavily protected policeman before being aggressively shoved by the officer and one of his colleagues.

Shouts of ’push him back’ echo three times as one of the officers shoves the man’s chest while another aims his baton in his direction.

The man then staggers backwards and hits the concrete floor while calls of ’he’s bleeding’ can be heard as blood pours from a head wound.

He is said to be in a serious, but stable, condition in a local hospital.

In a statement Mayor Byron Brown said the suspensions were given after an investigation into the incident was launched by the city’s police commissioner.

The two officers have not been identified.

Brown added that he was ’deeply disturbed’ by the video, which was initially published by local National Public Radio company, WBFO.