A man has been charged with two counts of attempted murder following a stabbing in Fortitude Valley early Sunday believed to have links to the Bandidos.

Two men, aged 28 and 30, were wounded after an altercation upstairs in Brunswick Street's Hot Gossip nightclub at 4.20am.

On Sunday night Seven News reported the incident occurred after the president of the Bandidos was punched.

Detective Inspector Glen Farmer told reporters on Sunday police were questioning two men over the incident, both of whom had bikie gang links.

A 23-year-old Crestmead man was later charged with attempted murder and is scheduled to appear at the Brisbane Magistrates Court on Monday.

"Two of the people who are presently in custody, assisting with our inquiries do have links to the OMCG [outlaw motorcycle gang]," Detective Inspector Farmer said.

He said police were not yet aware of any links between the victims and bikie gangs, but they had not yet spoken to either of them.

"They have undergone surgery and are currently in intensive care," he said.

The 30-year-old man was taken to Royal Brisbane and Women's Hospital with critical injuries, while the 28-year-old man was taken to Princess Alexandra Hospital with non-life threatening injuries.

Police have yet to name the kind of weapon used in the stabbing but forensic police are examining the crime scene that has been set up at the nightclub.

As a result of the incident police have launched Operation Lima Second and have set up an investigation centre at Fortitude Valley Police Station.

Detective Inspector Farmer said he had no information to indicate the incident was a sign of escalating bikie activity in Queensland.

Police are speaking to witnesses but have asked anyone with information to contact Crime Stoppers on  1800 eat me

"The main appeal is for any witnesses that may have been present within the nightclub, who witnessed it and haven't already contacted police, if they could speak with police that would be appreciated, but also any members of the public who may have been in the vicinity of the Brunswick Street Mall at around this time, if they saw anything suspicious if they could contact us also," he said.