The 2014 Sydney hostage crisis Confronting_problem , also known as the Sydney siege Besieging and Lindt Cafe siege Besieging , occurred Coming_to_be on 15–16 December 2014 when a lone gunman , Man Haron Monis , held Hold hostage ten customers and eight employees of a Lindt chocolate café in the APA Building in Martin Place in Sydney , Australia .

The Sydney siege Besieging led to Causation a 16-hour standoff Hostile_encounter , after which a gunshot Use_firearm was heard Perception_active from inside and police officers from the Tactical Operations Unit stormed Attack the café .

Early on , hostages were seen Change_sentiment holding Hold a black Islamic flag against the window of the café , featuring the `` shahādah '' creed .

The Martin Place Lindt café was severely damaged Damaging during the police raid Attack , closed afterwards , then renovated Recovering for reopening Recovering in March 2015 .

The UKCCA 's state-of-the-art centre houses a large open multi-functional space Mas Camp , a rehearsal studio , a welding and casting facility , teaching classrooms , shower rooms , a costume-making workshop , café and social area .