A 22-year-old man was arrested at Sydney Airport today over a brawl at a Penrith shopping centre last month.
The man was arrested as he returned from a trip to Thailand.
He was taken to Botany Bay police station where he was charged with breaching bail, affray, and participating in a criminal group.
The incident occurred about 2.45pm on Monday, August 20, when police allege a man was leaving the shopping centre and he was confronted by a group of nine males.
Police said a brawl erupted in front of numerous shoppers who were forced to flee for their own safety.
A number of members of the public tried to intervene, including an unknown male who was assaulted.
All involved in the brawl then left the scene.
On Thursday, August 23, a police operation resulted in the arrests of four males, all charged with various offences.
Police said then that three of the men were believed to have links to the Rebels bikie gang and the fourth was a senior member of the Nomads.
Penrith Detective Inspector Grant Healey, said at the time that one of the men who tried to stop the brawl and was assaulted was a good Samaritan, who tried to stop the attack.
Gangs Squad Commander, Detective Superintendent Arthur Katsogiannis, said acts of violence by people linked to outlaw motorcycle gangs would not be tolerated, particularly when they occurred in a public place.
"Members of the community have a right to go about their own business without the fear of violence or intimidation," Detective Superintendent Katsogiannis said.
The following day a fifth man was arrested after he attended Parramatta police station.
The 22-year-old was refused bail to appear at Parramatta Local Court tomorrow.
Police said investigations into the brawl are continuing and further arrests are anticipated.
They are also continuing to appeal for any witnesses who have not yet spoken to police to come forward.