Police arrested five suspects, including two 18-year-olds being held for alleged terrorism-related offences.
They said the men were planning to target police at an Anzac memorial event in Melbourne next week.
Some 200 police officers took part in the counter-terrorism operation in the city early on Saturday.
Acting deputy police commissioner Neil Gaughan told reporters that evidence gathered by police led them to believe the suspects had been influenced by Islamic State. » | Saturday, April 18, 2015