Pro-democracy protesters reinforce a barricade outside the government headquarters in Hong Kong October 13, 2014. Hong Kong police on Monday removed some barricades erected by pro-democracy protesters in the Chinese-controlled city, but said protesters could remain on the streets they have occupied for the past two weeks. (Photo by Carlos Barria/Reuters)

A policewoman tries to stop an anti-Occupy protester from breaking a police cordon to charge at pro-democracy protesters during a confrontation in Hong Kong 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. (Photo by Bobby Yip/Reuters)

Anti-Occupy Central protesters drag a metal fence over a pro-democracy protester at the main protest site in Admiralty in Hong Kong October 13, 2014. (Photo by Carlos Barria/Reuters)

Police try to stop a masked anti-Occupy Central protester as he attempts to remove road blocks set up by pro-democracy protesters in the Central financial district in Hong Kong October 13, 2014. (Photo by Tyrone Siu/Reuters)

An anti-Occupy Central protester (L) holds pliers as he cuts cable ties at barricades setup as road blocks by protesters at Central in Hong Kong October 13, 2014. (Photo by Tyrone Siu/Reuters)

Anti-Occupy Central protesters drag a metal fence over a pro-democracy protester (C) at the main protest site in Admiralty in Hong Kong October 13, 2014. (Photo by Carlos Barria/Reuters)

A crane removes barricades from the main protest site in Admiralty in Hong Kong October 13, 2014. (Photo by Carlos Barria/Reuters)

A office worker (2nd L) rushes to join pro-democracy protesters as they attempt to reinforce their barricades, as anti-Occupy Central protesters try to remove the road blocks, in the Central financial district in Hong Kong October 13, 2014. (Photo by Tyrone Siu/Reuters)

A police officer shouts at pro-democracy protesters at the main protest site in Admiralty in Hong Kong October 13, 2014. (Photo by Carlos Barria/Reuters)

A policeman (front R) removes an anti-Occupy Central protester from the main protest site in Admiralty in Hong Kong, October 13, 2014. (Photo by Carlos Barria/Reuters)

Police officers run towards a confrontation between pro-democracy protester and anti-Occupy Central protesters at the main protest site in Admiralty in Hong Kong October 13, 2014. (Photo by Carlos Barria/Reuters)

An Anti-Occupy Central protester drags away a tent at the main protest site in Admiralty in Hong Kong October 13, 2014. (Photo by Carlos Barria/Reuters)

An Anti-Occupy Central protester (R) drags away a tent at the main protest site in Admiralty in Hong Kong October 13, 2014. (Photo by Carlos Barria/Reuters)

Pro-democracy protesters (C, black t-shirt, and R, grey t-shirt) hang on to their barricades as they clash with anti-Occupy Central protesters (L) in the Central financial district in Hong Kong October 13, 2014. (Photo by Tyrone Siu/Reuters)

Police officers shout at protesters at the main protest site in Admiralty in Hong Kong October 13, 2014. (Photo by Carlos Barria/Reuters)

A pro-democracy protester (C) argues with policemen and anti-Occupy Central protesters at the main protest site in Admiralty in Hong Kong, October 13, 2014. (Photo by Carlos Barria/Reuters)

Pro-democracy protesters shout at anti-Occupy Central protesters as they clash in the Central financial district in Hong Kong October 13, 2014. (Photo by Tyrone Siu/Reuters)

Police try to stop a masked anti-Occupy Central protester (C) who was using pliers to cut cable ties at barricades set up as road blocks by protesters at Central in Hong Kong October 13, 2014. (Photo by Tyrone Siu/Reuters)

Anti-Occupy Central protesters (L) try to remove barricades set up as road blocks by pro-democracy protesters in the Central financial district in Hong Kong October 13, 2014. (Photo by Tyrone Siu/Reuters)

An anti-Occupy Central protester (C) shouts to pro-democracy protesters as he is dragged away by police officers at the main protest site in Admiralty in Hong Kong, October 13, 2014. (Photo by Carlos Barria/Reuters)

Anti-Occupy protesters block a photographer taking pictures of fellow anti-Occupy demonstrators removing barricades and tents (obscured) at the main protest site in Admiralty in Hong Kong October 13, 2014. (Photo by Carlos Barria/Reuters)