WATCH: Cleveland cop pepper sprays peaceful Movement for Black Lives protesters
Cleveland cop pepper sprays protesters during a demonstration on July 26, 2015. [screengrab]

In a message posted to the social medium Twitter on Sunday afternoon by rapper and activist Talib Kweli Greene, a police officer appears to pepper spray a group of protesters at a march to support the Movement for Black Lives (#M4BL).

WARNING: Strong language

According to, the activist group gathered at Cleveland State University this weekend to draw attention to police brutality and racial disparities in American society and within the criminal justice system.

Crooks and Liars reported that a protest erupted when police violently arrested a 14-year-old boy for not having a bus ticket.

He was later released, but not before marchers were arrested and manhandled by police.