The stabbing of a Sydney bishop during a live-streamed church service is being investigated as a potential act of terrorism by the police in Australia.

In this Incident, police took a 16-year-old boy in custody. The incident was happened two days ago.

According to the Police, A 53-year-old man with lacerations to his head found dead, while another man, 39, suffered lacerations and a shoulder wound after he tried to restrained the accused boy. The boy was restrained inside the building by members of the public.

Christ the Good Shepherd Church said in a statement today that the attacker approached Bishop Mar Mari Emmanuel at the lectern as he was delivering a sermon at about 7:05 p.m. local time. The attacker lunged at the bishop with a concealed knife, delivering blows to his head and body. Parish priest Isaac Royel was also injured in the attack, the church said.

“The attack was captured on a live stream of the service on its Facebook page and on YouTube” the police said.

New South Wales Police Commissioner Karen Webb said that the bishop and the priest had undergone surgery and were lucky to be alive.

“A large crowd gathered outside Christ the Good Shepherd Church immediately after the incident, and some clashed with police, throwing bricks and other objects. A number of officers were injured and police vehicles damaged” he added.

The stabbing incident comes as the city’s residents are still reeling from another attack by a knife-wielding assailant at a busy shopping mall on Saturday.

“Six people were killed in that attack, and more than a dozen others were wounded — including a 9-month-old infant whose mother was among those killed. The attacker, identified by police as Joel Cauchi, 40, was fatally shot by a police officer” the police said.

Mass killings are rare in Australia, where semiautomatic and automatic rifles and shotguns were banned after a mass shooting in 1996.