Two men have been charged over an attack which left a 37-year-old man with serious injuries to his abdomen and back.
He was taken to Royal Brisbane Hospital in a serious condition.
Police say they had been called to Bridgeman Downs in Brisbane's north about 3:30am on Thursday over reports of an altercation between three men.
Two men- aged 69 and 25- have been charged with attempted murder.
The three men are known to each other, police say.
They're both expected to appear before the Brisbane Magistrates Court on Friday.