Police are investigating whether a woman choked to death on a chicken burger, after she was found dead inside a vehicle at a shopping centre car park.

The 47-year-old Perth mother was found unresponsive three hours later by someone walking through the Karawara carpark at about 4:20pm last Friday.

It’s believed half of a chicken burger was found in her lap.

The car doors were locked so a window was smashed before St Johns Ambulance officers did their best to try and help the woman.

She was taken to Royal Perth Hospital where she was pronounced deceased.

A post mortem examination will determine the reason for her death.

It’s understood police do not suspect there was anything wrong with the burger.

© Nine Digital Pty Ltd 2018