Breaking: Sydney on alert as hostages are held at cafe

Several people have been taken hostage by at least one armed man at a Lindt cafe in Sydney, Australia.

Hundreds of armed police have sealed off the normally busy Martin Place in the central business district.

At least three people have been seen inside the cafe with their hands up against a window, and holding up a black flag with Arabic writing.

Australian Prime Minister Tony Abbott has described the incident as "deeply concerning".

Tony Abbott: "This is a very disturbing incident"

He said it was not yet clear who was behind the incident but that it could be politically motivated, and that the National Security Committee had been briefed.

"I can think of almost nothing more distressing, more terrifying than to be caught up in such a situation, and our hearts go out to these people," he said.

 

Apparent hostages inside the cafe were seen holding up a black flag with Arabic script on it

New South Wales Police Commissioner Andrew Scipione said the situation was not being treated as a terror incident, but confirmed there was "an armed offender in the premises holding an undisclosed number of hostages".

He said the situation was contained in Martin Place - dismissing various reports of other incidents around the city - and that police were "doing all we can to bring this to a peaceful outcome".

But he said police had not been in direct contact with the suspect.

One of the hostages has made contact at least twice with a local commercial broadcaster - under instructions from the hostage-taker - asking to go live on air.

The hostage spoke to a presenter for 2GB, but the request was turned down and the station later tweeted: "No negotiations will be made between the media and the armed offender."

The incident began as people were arriving for work in Martin Place on Monday morning.

Witnesses saw a man with a bag and gun walk into the Lindt chocolate shop and cafe. Police shut down the area, closing roads and moving people away. The Martin Place station was also closed.

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 Streets have been closed around the building and people moved out of the area

Heavily armed police are surrounding the cafe  

 Roads have been shut down and the Martin Place station is closed 

Police have upped their security checks across the city

Lindt said about 10 employees and 30 customers were thought to be inside. Nearby offices were evacuated and police asked people to remain indoors and away from open windows.

In a statement on Facebook, the company said it was "deeply concerned over this serious incident".

An armed man wearing a backpack and a bandana could be seeing walking around inside the cafe.

Television footage showed at least three people, thought to be employees of the cafe and who were visibly distressed, holding a black sign with the Islamic creed written on it up to the window. Commissioner Scipione said police were "trying to work out what it stands for".

The BBC's Security Correspondent Frank Gardner said the flag was similar to but not the same as that used by the Islamic State militant group in the Middle East.

 Police have been escorting people out of nearby buildings

One early report spoke of gunfire heard at the scene - but this has not been confirmed.

No injuries have been reported from the incident, according to a police spokesperson.

Martin Place is home to the state premier's office and the headquarters of two of the nation's largest banks. The state parliament house is also only a few streets away.

Courts in the business district and a number of banks are closed for the day.

Australia's terror threat timeline

21 Jul: Officials say Australian suicide bomber behind Iraq blast; concern grows over the number of Australians fighting for Islamist militant groups in the Middle East and the effect of them and their supporters on domestic security.

12 Sep: Australia raises terror threat level from medium to high, for the first time since the system was introduced in 2003.

14 Sep: Prime Minister Tony Abbott commits 600 troops to fight against Islamic State, as part of a multilateral effort.

18 Sep: Australia carries out what it calls its biggest counter-terrorism raid; Mr Abbott later confirms this was linked to an alleged plot by Australia-based individuals to kill a randomly selected member of the public.

29 Oct: New laws designed to stop Australians fighting in overseas conflicts are passed by the senate. 

'Business as usual'

 People were briefly evacuated from the Sydney Opera House on Monday morning but it appeared to be unrelated to the Martin Place siege

Speaking in Canberra, Mr Abbott said the incident was still unfolding, and urged people to be alert but carry on as normal.

"Australia is a peaceful, open and generous society - nothing should ever change that and that's why I would urge all Australians today to go about their business as usual," he said.

Australia raised its terror threat level in September, amid fears over the effect on domestic security of those fighting for and supporting the Islamic State.

Anti-terror legislation was passed in October, which critics said was too severe. Mr Abbott has previously said the threat meant "the delicate balance between freedom and security may have to shift".

Source/agooeast.com