Shocking footage has captured the terrifying scenes inside a packed Brisbane pub moments after a drive-by shooting left a 19-year-old woman fighting for her life and sent young children scrambling for cover, as two gunmen remain on the run.

The woman underwent surgery after being shot in the face at the Fitzys Loganholme Pub, south of Brisbane, shortly after 8pm on Saturday.

Three men were also wounded after at least six bullets were fired from the front passenger window of a Mitsubishi ASX, which was later dumped and set alight in nearby  Waterford West.

Inside, the venue was packed with young families attending the Logan City Titles Fight Night.

Footage showed frightened spectators, including young children, sheltering beneath the boxing ring as the shooting unfolded.

Another showed hero patrons rushing to provide first aid to the wounded victims while waiting for emergency responders to arrive, as other shocked witnesses were consoled. 

A 10-year-old boy was among those who witnessed the terrifying incident unfold.

‘My son and his friends went for a walk and as they walked out the front it all happened,’ his father told the Courier Mail.

Three men and a 19-year-old-woman were wounded during a drive-by shooting during a boxing night at Fitzys Loganholme on Saturday night. Pictured is a woman helping helping a an shot in the stomach

All four victims have since underwent surgery

Young children were among those who witnessed the terrifying incident unfold

‘Could have been any of the kids. My son saw the man in front of him get shot.

‘His words, he saw a glass get shot out of his hand and smash.’

Another witness added: ‘I went out into the foyer and saw the guy who was shot in the stomach, and there was blood everywhere.’

Logan mayor Jon Raven revealed on Monday that the young woman now fighting for  life was a competitor preparing for her bout.

‘What we’ve seen from the people in Logan is a huge amount of compassion that’s been pouring out for the people who are injured in this, but especially that young woman,’ he told the Today show.

‘She was a fighter who was warming up for her bout.

‘She was nowhere near where anything was happening and incredibly unlucky to even be hit because she was inside, completely separate from everybody else.’

Three men, aged 27, 37 and 38, also remain in hospital in serious but stable conditions.

The vehicle reportedly involved was found at Waterfront West on fire shortly after the incident

Fighter Talia Preston, who was uninjured, said the shooting ‘broke me’

The wounded men underwent surgery after being shot in the abdomen.

At least three men remained at large on Monday morning.

Police are yet to establish a motive for the targeted attack.

‘Establishing a motive for why this has taken place is one of our priorities… there appears to be a level of pre-planning,’ Detective Inspector Galpin told reporters.

He added that the critically injured 19-year-old woman was not an intended target.

‘It appals me greatly. It’s horrific. It’s something that her family should never have to go through,’ Det Insp Galpin said.

‘We’ve got an incident where we’ve got at least two people in a vehicle, they are disguised, and they’re firing a firearm, a weapon, into members of the public.

‘It could have been worse. I mean, I think the situation that we have is terrible. Whether more people could have been injured? Yes, certainly.’

Task Force Maxima, which is focused on outlaw motorcycle gang crime, are involved in the investigation. 

Police responded to reports of shots being fired from a vehicle outside a licensed premises in Loganholme, south of Brisbane, at 8.15pm

Fitzys Loganholme on Bryants Road was scheduled to host the Logan City Titles Fight Night on Saturday

 Police are expected to provide another update on Monday morning.  

Deception Bay Boxing Club coach Damien Smith, who had several fighters on the card for the Logan City Titles fight night, told the Daily Mail he does not believe the event was the target of the shooting.

‘I feel like a lot of people are jumping to conclusions about what happened – I don’t think boxing had anything to do with it,’ he said.

‘The fights were held at the back of the building, and everything happened in the front. We didn’t even know there was a shooting at first.’

Mr Smith said his fighters and their families were all safe.

Fighter Talia Louise Preston, from Caboolture, shared a heartbreaking statement on Facebook two hours after the shooting.

‘Tonight broke me. My heart hurts for everyone. For anyone who’s injured, I pray you pull through,’ she said.

It’s understood Ms Preston witnessed the teen being shot and initially mistakenly believed she was dead.

Heartbroken event organiser are ‘praying for full recoveries’ for the wounded.

‘As a team, we are working through it and dealing with the emotions that come with this,’ Logan City Titles said in a statement.

Police urge anyone with information or relevant footage to contact Crime Stoppers.