Hong Kong police push back pro-democracy activists after an attempt to encircle government headquarters.<br/> <br />Hundreds of demonstrators hold umbrellas in the air -- a symbol of their pro-democracy movement -- to protect themselves from pepper spray.<br/> <br />Defying orders to retreat after more than two months of demonstrations, protesters made their way to the city's Admiralty neighborhood, near the financial district.<br/> <br />Demonstrators say they're against Beijing's plans to pre-screen candidates for Hong Kong elections, and want free elections for the city in 2017.<br/> <br />This latest flare-up comes after four nights of unrest in the city's Mong Kok district, one of the city's largest and most volatile protest sites, which police had tried to clear.
