Police have called in SES volunteers as they increase their efforts in the search for missing Perth mother Helen Rocha.
Officers began searching bushland surrounding Kwinana train station in Bertram today.
Major Crime Squad was called following Ms Rocha's last known sighting in the Hamilton Hill or Willagee areas on September 26.
A house in Parmelia was searched by police earlier this month.
Ms Rocha is about 157cm tall, of slim build, with an olive complexion, black hair and brown eyes.
She was last seen wearing a black top, black tights and black running shoes.