Homicide detectives are questioning a woman as part of their investigation into the death of a man south of Perth.

Police were called to what they described as a “serious incident” on Bramall Terrace in Baldivis about 6.40pm yesterday.

A 49-year-old man was found with critical injuries and rushed to hospital, where he later died.

A 45-year-old woman, known to the man, is speaking with detectives.

The investigation is ongoing and police urge anyone with information to contact Crime Stoppers.