Police are investigating after a middle-aged man was shot in the stomach at a unit block in Brisbane’s north.

A man has been shot in the stomach at an apartment block in Brisbane’s north.

The injured man, 48, was found in a Wooloowin unit Tuesday afternoon and taken to the Royal Brisbane Hospital, police say.

A 61-year-old man is being questioned by police as they continue their investigation.

Further information is being sought from authorities.