Warning: This article contains graphic content that may disturb some readers.
Chaotic scenes have played out in Sydney's east after another stabbing resulted in a riotous mob taking to the streets.
A 15-year-old has been arrested after allegedly entering the packed church service, which was being livestreamed, and stabbing the bishop on Monday night.
Three others were also injured in the aftermath.
A large police response was required to control the hundreds of supporters and protesters who had gathered outside.
At least two officers were injured, while footage showed dozens of people bashing ambulance windows, police cars and each other.
Crowds also gathered outside the nearby hospital where the four victims had been taken, with the facility being placed in lockdown.
Police said none of the injuries were thought to be life-threatening and investigations were ongoing.
The stabbing was caught on camera and showed shocked attendees racing to help the Bishop.
As Bishop Mar Mari Emmanuel was preaching, a man walked up to him, withdrew a weapon, and rained down blows on the elderly victim.
Horrified screams were heard on the YouTube feed before it was cut off.
The bishop was later seen being taken to an ambulance in a stretcher. NSW Ambulance told NCA NewsWire a man aged in his 50s was taken to Liverpool Hospital with multiple stab wounds.
Fairfield Mayor Frank Carbone told Sky News Australia he believed the Bishop would be "OK" and called for calm.
"Bishops and priests they're very very important in our community, they only preach love and peace and to have this happen to one of them is horrific," he said.
"We live in difficult times right now... so I can understand frustration and the anger from the communities but I ask them as the mayor just to please be calm."
It came just 48 hours after Sydney knifeman Joel Cauchi stabbed at least 17 people on Saturday at the Bondi Junction Westfield mall. Six victims were killed - five of whom were women.
Newshub.
