Story highlights Seven Hong Kong police officers convicted of assaulting protestor Ken Tsang

In 2014, video captured Tsang being beaten by police during the Occupy protests

Hong Kong (CNN) Seven police officers were convicted Tuesday of assaulting a protester during Hong Kong's pro-democracy demonstrations in 2014.

All the defendants faced one joint count of causing grievous bodily harm with intent, but in the end the city's court convicted them with a lesser charge of assault occasioning actual bodily harm.

The convicted officers were sentenced to two years in prison each.

Five of the seven police officers charged with assaulting a pro-democracy activist on October 15, 2014, arriving at a district court in Hong Kong on February 14, 2017.

One of the defendants, policeman Chan Siu-tan, 31, was also found guilty of common assault for slapping social worker Ken Tsang Kin-chiu twice during an interview, at a police station in Hong Kong's Central district.

Chan was sentenced to one month in prison for the assault to be served concurrently with his two year sentence.

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