Disturbing video has emerged of a violent brawl erupting at a popular beach club in Bali, with reports of at least one Australian involved.

Footage shows one man grabbing a pole and swinging it at another man outside the Finns Beach Club in North Kuta on Tuesday night.

Police say at least one of the men in the brawl was Australian.

Security staff intervened and escorted the man from the club, but when they reached the car park he began attacking guards.

A mass brawl erupted when four of his friends arrived and began fighting with security staff.

“They launched a brutal attack before fleeing north toward Jalan Pantai Berawa,” said Inspector Putu Sukarma.

Footage shows the shirtless tourists striking security guards with what appears to be a pole.

Four security guards were injured during the brawl, including one who suffered broken teeth and a head injury requiring hospital treatment.

Police are investigating the case and have identified the perpetrators.

“The suspects are being pursued, and their identities have been confirmed,” Sukarma said..

Authorities are reviewing CCTV footage and gathering witness statements to track down the attackers.