Hostages run towards armed tactical response police as they run to freedom from a cafe under siege at Martin Place in the central business district of Sydney, Australia, Tuesday, Dec. 16, 2014. New South Wales state police would not say what was happening inside the cafe or whether hostages were being held. But television footage shot through the cafe's windows showed several people with their arms in the air.(AP Photo/Rob Griffith)

Photos: Hostage situation in Sydney cafe

Three people ran out a fire exit of a Sydney cafe where a gunman took an unknown number of people hostage at the height of Monday morning ru…