Church services in Sydney drew politicians and faith leaders together as the country showed solidarity with New Zealand following the Christchurch terror attacks.

Prime Minister Scott Morrison and his wife have joined politicians and religious figures in the heart of Sydney for an interfaith service following Friday's massacre in Christchurch.

Police are aware of a small number of white extremists in NSW and are keeping a vigilant watch on them after the massacre in New Zealand, the state's opposition leader says.

Pepper spray and the dog squad were called in to break up a wild party of about 300 people at an inner-Melbourne park.

The massacre of dozens in Christchurch mosques has been described as an "act of terror .

A man who allegedly posted comments online about the Christchurch terrorist attack has led South Australia Police to a haul of weapons in his home.

Scott Morrison has condemned comments from Senator Fraser Anning blaming the Islamic community for the New Zealand mosque shooting, saying they are "appalling and they're ugly and they have no place in Australia".

Tasmania Police need the public's help to piece together the events before a man came to a Launceston hospital suffering stab wounds to his torso.

Prison officers have shot and killed an inmate who was trying to escape after he was treated at a northern NSW hospital.

A Malaysian national has been arrested and charged after Australian Border Force officers allegedly found child porn on his mobile phone at Perth International Airport.