The New South Wales Police Force has shut down three bikie clubhouses this week as part of an ongoing operation targeting gang activity.

On Wednesday, officers raided a Comanchero clubhouse at Turrella, in Sydney's south, seizing alcohol, documentation and gang paraphernalia.

Yesterday, the Gangs Squad's Strike Force Raptor also hit Hells Angels clubhouses at Haymarket in the CBD and Annandale in the Inner West.

Police say they found evidence of illegal alcohol sales at all three premises.

The occupiers of all three buildings will be issued with breaches under the Environmental Planning and Assessment Act.

Commander of the Gangs Squad, Detective Superintendent Arthur Katsogiannis, says police would keep the pressure on.

"As long as some people within these gangs want to carry out criminal acts or allow their violent conflicts to be aired in public, we will be there to disrupt their day-to-day activities," he said.

Police say the raids are unrelated to a fatal shooting earlier this week.

18-year-old Bassil Hijazi, who was killed at Bexley on Monday night, had links to the Turrella clubhouse.

Detective Chief Superintendent Mal Lanyon says the decision to strike was made independently.

"This is part of an ongoing effort by Strike Force Raptor," he said.

"We're obviously very cognisant of what's happening in the outlaw motorcycle gang environment, and this was part of a planned series of actions."

Det Supt. Lanyon says the move sends a strong message.

"It certainly disrupts the structure that they currently have in place," he said.

He says police are likely to target more bikie clubhouses.

"The NSW Police Force won't tolerate violence in any form," he said.

"We're committed to disrupting that violence, to prevent it occurring, and certainly we continue to investigate those instances that have occurred."

Strike Force Raptor was established by State Crime Command's Gangs Squad in 2009.

It is a proactive and high-impact operation targeting outlaw motorcycle gangs and any associated criminal enterprises.