An alleged member of Islamic State accused of preparing possible terrorist attacks has been remanded in a Sydney jail ahead of a possible bail application.
Riverwood man Youssef Uweinat, 21, did not appear on Thursday when his case was briefly mentioned at Parramatta Local Court.
His lawyer, Kiki Kyriacou, asked for a bail hearing to be set later in December before acknowledging he would need to file paperwork.
Uweinat was arrested on Wednesday by counterterrorism police and accused of preparing possible terrorist acts, advocating terrorism and being a member of terrorist organisation Islamic State.
Police allege in court documents he prepared between July and the time of his arrest to carry out a terror attack.
Detectives allege the man posted increasingly extremist material online over the past six months and sought to convince others - particularly teenagers aged 17 and 18 - to pledge allegiance to IS.
The accused also allegedly downloaded a document on how to use knives and other blunt instruments in a terrorist attack.
Authorities say the 21-year-old was connected to others previously charged with terrorism offences in Australia.
Australian Federal Police assistant commissioner Ian McCartney alleged Uweinat had not yet established a specific target and did not provide an immediate threat.
"We decided to act early because we needed to - we were concerned," Mr McCartney told reporters in Sydney on Thursday.
"It's fair to say there was a continuum in terms of radicalisation and we were getting concerned that continuum was increasing ... (to) radicalisation to the point of encouraging politically-motivated violence."
Additional arrests are not anticipated.
Uweinat's next scheduled court date is February 13.