Based on advice from security and intelligence agencies, the Australian Government has raised the National Terrorism Public Alert level from Medium to High.
The advice is not based on knowledge of a specific attack plan but rather a body of evidence that points to the increased likelihood of a terrorist attack in Australia.
Members of the public can report suspicious activities to the National Security Hotline on 1800 1234 00.
The Prime Minister's media release is available on the Prime Minister of Australia website.
Armed offender attacks have occurred in crowded places such as sporting, transport and entertainment venues. The public and private sector must work together to prevent and reduce the impact of any incidents.
For more information, visit the Publications page.
Every piece of information that we receive from members of the public today could be invaluable in keeping Australia safe from terrorism tomorrow. It is often the smallest details that make the biggest difference.
To access current and previous public information material, visit the National security campaign page.
A wide range of industrial, agricultural and veterinary chemicals are legitimately used by individuals and organisations every day throughout Australia. However, some of these chemicals have in the past been diverted from their legitimate use and used for unlawful purposes, including terrorist activity.
Find out more on the Chemical security page.
In October 2013 the Australian Government announced it will provide financial assistance to people affected by past acts of terrorism overseas. The Australian Victim of Terrorism Overseas Payment (AVTOP) will also apply to future acts of terrorism overseas that are declared by the Prime Minister.
The one-off payment of up to $75 000 will provide financial assistance for Australian residents who are harmed as a direct result of declared terrorist acts. Payment of up to $75 000 may be shared among eligible close family members of someone that died as a direct result of a declared terrorist act.
More information is available on the Department of Human Services website.
Australia is at HIGH level of alert.
The systems we rely on, such as power, water, banking, communications, food, transport, health and emergency services, are resilient to all hazards.
Find out more on the role of state and territory governments and their counter-terrorism arrangements.