Protestors have been gathering in Hong Kong to oppose the face-mask ban that went into effect last weekend and makes covering one's face at a public demonstration punishable by up to one year in prison. Riot police were out to control the protestors, and a video of one protestor delivering an impressive flying kick to an officer kicking and trying to disarm another protestor has gone viral. 

The video shows an officer kicking and pepper-spraying a protester while another protester is trying to pull the man away. Another protester comes in out of shot of the video and flies through the air, kicking the officer in the chest and knocking him down. As the officer falls to the ground, another man runs up and stabs him in the neck. According to reports, the officer was in stable condition after being taken to the hospital. 

Source: Telegraph.co.uk