'Be aware but not afraid': plots raise terrorism threat

The level of threat for terrorism in Australia has been raised for the first time in a decade. (Lukas Coch/AAP PHOTOS)

Australians have been told to be vigilant but continue their way of life as the nation's terrorism threat level is lifted for the first time in a decade.

The threat level has been raised from "possible" to "probable" because of an increased risk of politically motivated violence.