For weeks now, pro-democracy protest groups have occupied parts of central Hong Kong, calling for open elections and the resignation of Hong Kong's Chief Executive Leung Chun-ying. Local police have been urging the demonstrators to leave for days, and have recently stepped up efforts to dismantle barricades on several major roads - only to have many of them rebuilt hours later. Tensions boiled over last night, leading to a violent clash between police and protesters. Police arrested dozens, and at least one demonstrator, politician Ken Tsang Kin-chiu, was dragged away and beaten by police, a moment caught in this video. As of today, most of the Occupy protesters remain in place, Beijing refuses to budge, and no discussions are underway.
1. Police forces march toward pro-democracy protesters holding umbrellas during a standoff outside the central government offices in Hong Kong on October 14, 2014. Hong Kong police vowed October 14 to tear down more street barricades manned by pro-democracy protesters, hours after hundreds of officers armed with chainsaws and bolt cutters partially cleared two major roads occupied for a fortnight.
Philippe Lopez/AFP/Getty Images
2. A police officer sprays a pro-democracy protester in the face with pepper spray in Hong Kong on October 15, 2014. Hong Kong has been plunged into the worst political crisis since its 1997 handover as pro-democracy activists take over the streets following China's refusal to grant citizens full universal suffrage.
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3. Pro-democracy protesters take park in a rally outside of Hong Kong Government Complex on October 13, 2014 in Hong Kong.
Anthony Kwan/Getty Images
4. A cyclist is pictured near a barricade, which was later removed by the police, on a main road leading to the financial Central district in Hong Kong October 14, 2014.
Reuters/Bobby Yip
5. Police officers run toward barricades that protesters set up to block off main roads in Hong Kong's Central district on October 14, 2014.
AP Photo/Kin Cheung
6. An anti-Occupy Central protester shouts at pro-democracy protesters as he is dragged away by police officers at the main protest site in Admiralty in Hong Kong, on October 13, 2014. Hundreds of unidentified people, some wearing masks, tried to break down protest barriers in the heart of Hong Kong's business district on Monday, scuffling with protesters who have occupied the streets for the past two weeks.
Reuters/Carlos Barria
7. Pro-democracy protesters (rear) hang onto their barricades as they clash with anti-Occupy Central protesters (left) in the Central financial district in Hong Kong on October 13, 2014.
Reuters/Tyrone Siu
8. A man jabs his fingers in the throat of a pro-democracy protester in the Central district of Hong Kong on October 13, 2014.
Alex Ogle/AFP/Getty Images
9. Police officers remove bamboo barriers that protesters set up to block off main roads in Hong Kong's Central district on October 14, 2014.
AP Photo/Kin Cheung
10. Police officers remove protester's tents in a main road of the Central district in Hong Kong on October 14, 2014.
AP Photo/Kin Cheung
11. Hong Kong police officers remove barricades that protesters set up on October 14, 2014.
AP Photo/Kin Cheung
12. A protester cries after police removed barricades that protesters set up in Hong Kong on October 14, 2014.
AP Photo/Vincent Yu
13. Heavy equipment is used to remove an umbrella at the main protest site in Hong Kong on October 14, 2014.
Reuters/Tyrone Siu
14. A pro-democracy protester wears a plastic bottle as protection from tear gas as he stands facing a police cordon near the government headquarters building in Hong Kong on October 13, 2014.
Reuters/Carlos Barria
15. Pro-democracy protesters take pictures around an art installation made with umbrellas as they block a commercial area of Causeway Bay in Hong Kong on October 11, 2014.
Reuters/Tyrone Siu
16. A pro-democracy protester meditates on an occupied bridge leading to the financial Central District in Hong Kong on October 14, 2014.
Reuters/Liau Chung-ren
17. A couple, running late for their wedding ceremony due to the occupation of the main roads by pro-democracy protesters, run towards the marriage registry in central Hong Kong on October 14, 2014.
AP Photo/Vincent Yu
18. A boy draws on a street blocked by pro-democracy protesters outside of the government headquarters building in Hong Kong on October 11, 2014.
Reuters/Carlos Barria
19. A man and girls read messages left by pro-democracy protesters outside the government headquarters in Hong Kong on October 12, 2014.
Reuters/Bobby Yip
20. Demonstrators block an underpass with concrete slabs taken from drainage ditches on a main road outside government headquarters in Hong Kong on October 15, 2014.
AP Photo/Kin Cheung
21. Demonstrators climb over barriers as others block the main road with metal and plastic safety barriers in Hong Kong's Admiralty on October 15, 2014.
AP Photo/Kin Cheung
22. Pro-democracy protesters gather near the central government offices in Hong Kong on October 15, 2014.
Alex Ogle/AFP/Getty Images
23. A pro-democracy protester takes photos of obstacles made with concrete slabs in a tunnel near the central government offices in Hong Kong on October 15, 2014.
Alex Ogle/AFP/Getty Images
24. Pro-democracy protesters stand behind umbrellas as police prepare to advance on their positions near the central government offices in Hong Kong on October 15, 2014.
Alex Ogle/AFP/Getty Images
25. Police officers create a cordon on a street outside of Hong Kong Government Complex on October 14, 2014 .
Anthony Kwan/Getty Images
26. Police officers push protesters into a nearby park to clear a main road in Hong Kong's Admiralty on October 15, 2014.
AP Photo/Kin Cheung
27. Police officers push protesters into a nearby park to clear a main road in Hong Kong's Admiralty on October 15, 2014.
AP Photo/Kin Cheung
28. A police officer detains a pro-democracy protester after he was tackled to the ground in Hong Kong on October 15, 2014.
Alex Ogle/AFP/Getty Images
29. Civic Party member Ken Tsang, one of Hong Kong's pro-democracy political groups, is taken away by policemen, before being allegedly beaten up by police forces as seen on local TV footage shot outside the central government offices in Hong Kong on early October 15, 2014.
Philippe Lopez/AFP/Getty Images
30. A protester leans on barricades after scuffling with police as they were trying to remove barricades that protesters set up to block off main roads in Hong Kong's Central district on October 15, 2014. Hong Kong police removed some barricades on Tuesday from the edge of pro-democracy protest zones that have choked off roads for weeks, the second straight day they have taken such action and signaling their growing impatience with the student-led demonstrators.
AP Photo/Vincent Yu
