Teen detained after 'terrorist' church stabbing in Sydney
![Teen detained after 'terrorist' church stabbing in Sydney](https://s.france24.com/media/display/960481d6-fb8f-11ee-b527-005056a97e36/w:1024/p:16x9/000_34PG6BW.jpg)
Australian police on Tuesday said a brutal live-streamed knife attack at a church service in Sydney was a religiously motivated "terrorist" act, as they urged calm from the angered local community.