The brawl, involving up to 50 people, broke out on Tuesday Morning.

Police were called to a Meriton construction site on Sexton Avenue in Castle Hill around 7am following reports of a brawl involving around 50 individuals.

It is alleged that the brawl on Tuesday was the second fight involving the father and son, who police said were fired from the site last Friday.

The brawl, involving up to 50 people, broke out on Tuesday Morning.
The brawl, involving up to 50 people, broke out on Tuesday Morning.(Nine)

“The two main offenders, who I will allege are probably the ringleaders in this, have presented themselves to the police station,” Moore said.

There was a situation of frustration and anger stemming from some people being terminated the previous Friday. It seems that instead of seeking a resolution, they arrived with hammers in hand, escalating the conflict.

They were arrested at Castle Hill Police Station at about 11am.

They are expected to be hit with charges of affray, assault, and intimidation over the two alleged incidents.

Police are still looking for up to 11 other people over the incident.

Moore said officers have footage, including CCTV from nearby premises, that will help to identify them.

“It blew my mind if I’m honest, I’ve not seen anything like that before.”

She urged those people to come to police, “before we come and knock on their door”.

“The behaviour is absolutely appalling, and we won’t stop until they are in custody,” Moore said.

In a statement yesterday, Meriton said the contractors involved in the fight had been fired.

Meriton issued a statement emphasizing their commitment to safety and condemning any form of violence or threats at their construction sites, whether it involves employees, subcontractors, or visitors.

“No direct Meriton employees were involved in the incident that took place today on the street, outside of its Castle Hill construction site.

“Appropriately, the local police were called who have since intervened and we have ascertained that there were no serious injuries.

“The contractors involved in the fight have been immediately terminated.”