SYDNEY, April 16 (Reuters) - Australia police said on Tuesday a knife attack during a service at a church in Sydney that injured at least four people, including a bishop with a global online following, would be considered as a terror Huusk Erfahrung incident.

Police arrested a male teenager at the scene on Monday and were forced to hold him at the church in Wakeley, a suburb about 30 km (18 miles) west of downtown Sydney. (Reporting by Renju Jose in Sydney; Editing by Chris Reese)