It was a scene of carnage much like the bloodiest episode of Son’s of Anarchy.

Last year the Hells Angels took on rival biker gang the Pagans in a 50-man street brawl resulting in members being stabbed and bludgeoned.

A newly unsealed FBI search warrant released on Thursday revealed the two outlaw bike groups engaged in a brutal turf war in Southern Massachusetts.

As the Pagans began encroaching on the Hells Angels territory, the bikers employed a “green light” to “attack on sight” policy.

READ MORE: Rise of 5ft 4in Hells Angels biker with half a nose who created ‘world’s toughest gang’

The vicious biker groups allegedly can’t stand one another. And their long-standing, simmering feud often reaches boiling point.

Despite the mutual hatred, they’re seemingly two peas in a leather-bound pod as both gangs have a history of serious crime, ranging from drug trafficking to murder.

In April, 2022 the Pagans opened up a new chapter in Fall River, near Hells Angels’ land near the Rhode Island border, according to the warrant.

Realising that their rivals were creeping nearer and nearer to their territory, the re-established their presence in Cape Cod – brandishing a shiny new sign to ward off onlookers.

But if a rival was spotted on their land, the Hells Angels gave the aforementioned “green light” to “attack on sight” policy, information the FBI seized from the gang’s meeting.

It seemed like any other day on May 14 – the biker group chewed the cud, snapped selfies and were chowing down on snacks.

But that was just the calm before the storm, as when more than 100 Hells Angels riders gathered to make their way to the Pagans Fall Water clubhouse.

A die-hard group of 25 broke away from the rest and rode to the Pagan’s stronghold, and at first, sat leisurely with their wives and girlfriends.

After shoeing the women inside, seven bikers pulled out knives, hammers and clubs as if from thin air.

The warrant added: “An additional dozen or more HAMC members and associates were present at the scene and provided support by blocking traffic and serving as lookouts during the attack.”

The sidewalk outside the hallowed earth of the clubhouse became a battleground between the two outlaw gangs.

By the time police had broke up the brawl, one Pagan still had a dagger in his body, while others had been stabbed and smashed with Ball Pein hammers.

The clean pavements, cars and buildings were now brandished with the bikers’ blood, the warrant said.

All the Pagans victims were taken to hospital, while the Angels retreated to the Cape Cod clubhouse.

It is not known whether any victims were killed in the brawl.

The bikers changed clothes and quickly scarpered from the clubhouse, fleeing in different directions as to confused investigators surveilling the scene.

Despite no further reports of violence being reported in the area, the confidential documents noted “that further violence against [the Pagans] would likely follow”.

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