Australian police are treating a stabbing at a Sydney church as a terrorist attack, New South Wales Police Commissioner Karen Webb said on Tuesday. Police were called to Christ The Good Shepherd Church in Wakeley, western Sydney, on Monday evening, following reports of a stabbing where two people had been injured, Webb said. A 16-year-old boy, who had been restrained by members of the public, was arrested by police. Webb said the boy allegedly made comments as he launched the attack. “After consideration of all the material, I declared that it was a terrorist incident.” The boy was taken to ho…