By ITP
In pics: Hostage situation in Sydney
The Sydney Opera House has been evacuated on December 15, 2014 in Sydney, Australia, as police respond to a hostage situation – an armed man believed to be an Islamic terrorist is holding at least 20 people hostage at Lindt Chocolate Cafe.


Armed police patrol near the Sydney Opera House on December 15, 2014 in Sydney, Australia. Major landmarks in Sydney, including the Sydeny Opera House, have been evacuated as police respond to a hostage situation inside a Martin Place cafe. (Getty Images)

Armed police patrol on December 15, 2014 in Sydney, Australia. Major landmarks in Sydney, including the Sydeny Opera House, have been evacuated as police respond to a hostage situation inside a Martin Place cafe. (Getty Images)

Armed policeman talk on Phillip St close to Martin Place on December 15, 2014 in Sydney, Australia. Police attend a hostage situation at Lindt Cafe in Martin Place. (Getty Images)

Police confer on Philip St near the Lindt Cafe, Martin Place on December 15, 2014 in Sydney, Australia. Police attend a hostage situation at Lindt Cafe in Martin Place. (Getty Images)

Ladies rush through Philip St past armed police at Lindt Cafe, Martin Place on December 15, 2014 in Sydney, Australia. Police attend a hostage situation at Lindt Cafe in Martin Place. (Getty Images)

Armed police patrol on December 15, 2014 in Sydney, Australia. Major landmarks in Sydney, including the Sydeny Opera House, have been evacuated as police respond to a hostage situation inside a Martin Place cafe. (Getty Images)

Armed policeman are seen outside Lindt Cafe on Philip St, Martin Place on December 15, 2014 in Sydney, Australia. Police attend a hostage situation at Lindt Cafe in Martin Place. (Getty Images)

Armed police perform a safety check on December 15, 2014 in Sydney, Australia. Major landmarks in Sydney, including the Sydeny Opera House, have been evacuated as police respond to a hostage situation inside a Martin Place cafe. (Getty Images)