A man has been arrested at a major airport and charged with murder after the body of a 79-year-old woman was found at a suburban home.
The body was discovered with a fatal stab wound at a residence at The Gap in Brisbane's northwest on Monday afternoon, Queensland Police said.
About two hours later, Australian Federal Police arrested a 40-year-old Victorian man at Brisbane Airport.
Investigators say the two knew each other, with the man charged with murder (domestic violence offence).
He is due to face Magistrates Court later on Tuesday.
The investigation is ongoing and a crime scene has been set up at the home at Chestnut Place.