A 46-year-old man is fighting for his life in hospital after receiving "multiple gunshot wounds to the chest" in a disturbance at Sunnybank Hills in southern Brisbane on Saturday morning.

Key points: Inspector Acreman says the man opened fire from the balcony when a group of people arrived at the house

Inspector Acreman says the man opened fire from the balcony when a group of people arrived at the house They tried to hide behind a bus shelter, but the man kept firing at them as he fled the scene

They tried to hide behind a bus shelter, but the man kept firing at them as he fled the scene Police arrested a suspect at a house in nearby Doolandella

The man, from Sunnybank, has undergone emergency surgery and was reportedly in a critical but stable condition.

A woman, 25, from West End, was also shot in the incident but does not have life-threatening injuries.

Inspector Geoff Acreman said police had been told several people arrived at a house in Goman Street where they were met by a man standing on the verandah.

"The reports are that he has produced a firearm and started shooting at the people who are on the road," Inspector Acreman said.

"Those people have then taken cover beside the bus shelter.

"It's reported the suspect has then jumped the neighbouring fence and continued to shoot at the people on the footpath.

"As a result … a female has received two gunshot wounds to the leg and a man has received multiple gunshot wounds to the chest."

Officers arrived at the house around 7:20am and found the two wounded people.

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Watch Duration: 42 seconds 42 s Inspector Geoff Acreman describes how the shooting unfolded

Man arrested after driving away

Inspector Acreman said police were still investigating what prompted the arrival of people at the Goman Street house.

He said they arrived at the house on foot with what he described as "a rather large dog".

"This is not a random attack on a stranger walking down the street, these people are known to each other so the cause of it will be identified in due course," he said.

A black BMW police allege was driven by the gunman to flee from Sunnybank Hills. ( ABC News: Mark Leonardi )

"The gunman was seen to leave in a black BMW which was observed to go to a residence over at Doolandella.

"As a result of that, police attended there, secured the scene.

"An emergency declaration was declared by myself at that location, but he was taken into custody without incident."

That house has been declared a secondary crime scene.

Police have charged a 24-year-old Doolandella man with the unlawful possession of six weapons and drug offences, and is due to appear in court on Monday.

"The property at Doolandella is the registered address of the person who we are talking to at the moment," Inspector Acreman said.

"But there's also suggestions he may have an ownership linked to this property [at Sunnybank Hills] as well.

Police examining the bus shelter where people took cover during the shooting incident. ( ABC News )

"At this stage we've recovered some 22-calibre casings but the weapon itself has not been recovered."

Inspector Acreman said officers found the BMW at the Doolandella property and the car had been impounded.

A nearby resident in Goman Street, Prince Nehra, said he was sleeping in his house when he woke to the sound of gunfire and screams.

"I ran downstairs and then I just [saw] a female and male [lying] down on the floor and screaming," he said.

"I saw a BMW … reversing back.

"We just go to the police and [they] arrived … a dog bit a police officer, so he got injured as well," Mr Nehra said.

Police arrested a male suspect at this house in Doolandella. ( Supplied )

The officer was taken to hospital to have the bite treated.

Inspector Acreman said the officer was "fine, but embarrassed".

Mr Nehra said he had lived with his family in the area for two-and-a-half years and described the incident as "scary".

"We never hear anything from [neighbours] … this morning is really shocking," he said.

"It's scary for the kids as well."

The street in Sunnybank Hills where two people were found with gunshot wounds. ( ABC News: Kate McKenna )

Inspector Acreman said the incident had scared many in the neighbourhood.

"Waking up to gunshots would be a nervous start to a day for anybody, but in a suburban area like this it's not something you'd expect," he said.

"So yeah, the people in the neighbourhood are quite concerned, but they don't need to be concerned … the person who's responsible we believe is in custody."