Hong Kong police deployed tear gas and pepper spray to try to disperse tens of thousands of pro-democracy protesters who occupied the city’s financial district on Sunday.

The protests, originally led by student protesters, began on Friday in front of the Hong Kong government headquarters in Admiralty. Leaders of the Occupy Central movement joined the rally early Sunday and started a mass sit-in, according to the Guardian.

At first Police used pepper spray to try to clear the protesters. Then on Sunday, police fired tear gas into the crowds of protesters at least three times on Sunday afternoon and have threatened to use more force, the Guardian reported.

The HK Hospital authority said at least 41 people have been injured since the start of the protest, according to Apple Daily.

This animation explains tear gas and pepper spray and their effects on the human body.

----------------------------------------­---------------------

Welcome to TomoNews, where we animate the most entertaining news on the internets. Come here for an animated look at viral headlines, US news, celebrity gossip, salacious scandals, dumb criminals and much more! Subscribe now for daily news animations that will knock your socks off.

For news that's fun and never boring, visit our channel:
https://www.youtube.com/user/TomoNewsUS

Subscribe to stay updated on all the top stories:
https://www.youtube.com/channel/UCt-WqkTyKK1_70U4bb4k4lQ?sub_confirmation=1

Visit our official website for all the latest, uncensored videos: https://us.tomonews.net
Check out our Android app: http://bit.ly/1rddhCj
Check out our iOS app: http://bit.ly/1gO3z1f

Stay connected with us here:
Facebook http://www.facebook.com/TomoNewsUS
Twitter @tomonewsus http://www.twitter.com/TomoNewsUS
Google+ http://plus.google.com/+TomoNewsUS/
Instagram @tomonewsus http://instagram.com/tomonewsus