Robbers have shot a man and a driver has opened fire on a car full of people in separate incidents within minutes of each other south of Brisbane.
The shootings happened barely half an hour apart in neighbouring suburbs in Logan on Thursday night, with the man being rushed to hospital with a gunshot wound to the neck.
Police said five people - including three teenagers - were in a car that was shot at in Logan Reserve.
Detective Senior Sergeant Nicola Brown said an altercation occurred about 7pm after another motorist drove erratically before pulling a gun on the carload of people.
"That driving behaviour escalated into an incident whereby an unknown male driving a silver Mitsubishi Lancer has fired a shot into the window of the victim's vehicle," she told reporters on Friday.
No one was injured.
About 40 minutes later, police said a 23-year-old man was shot in the neck after a group of people staged a violent robbery in the Logan area.
The group went to a Park Ridge property with a firearm and demanded property from the occupant, police said.
He was taken to hospital, where he remains in a stable condition, with non-life-threatening injuries.
The group left with a small number of items, Det Sen Sgt Brown said, "however, I think they didn't get away with what they intended to go for as a result of that shot being fired".
Police did not yet have suspects or a motive for the robbery, she said.
Anyone with information about either incident is urged to contact police.
"Having unlawful firearms in suburbia is just not tolerated," Det Sen Sgt Brown said.