Homicide detectives look into Perth death

A man has died outside a house in Perth, sparking an investigation by homicide detectives.

The 46-year-old was found collapsed on a footpath outside a home in Hilton in the city's south on Monday afternoon.

Members of the public and paramedics administered first aid, but the man died at the scene.

Police say homicide squad detectives are now investigating the death and want to speak to anyone who saw a white Toyota HiLux with the WA registration 1DOJ521 in the area between 2.30pm and 4.30pm.

Anyone with CCTV, mobile phone or dash-cam vision of the area around Carrington Street at the same time is also asked to make contact.