Traps laid for croc believed to have killed missing 79-year-old Queensland woman

Traps are being set in an attempt to catch the crocodile believed to have taken a 79-year-old Queensland grandmother.

Anne Cameron was last seen near an aged care facility in Port Douglas on Tuesday afternoon and her family believe she passed away in "tragic circumstances."

Police believe the dementia sufferer may have been taken by a crocodile after becoming disoriented when she wandered into a dense area of bushland.

Anne Cameron went missing on Tuesday. Source: 7 News

A Department of Environment and Heritage Protection spokesman says traps will be set in an attempt to catch the crocodile as police and wildlife officers continue to look for the woman's body.

Clothes and a walking stick with Ms Cameron's name on it were discovered on Thursday at the end of Four Mile Beach.

"We have also located some biological matter which we believe to be human remains and these are being tested in Cairns," Acting Inspector Ed Lukin said on Thursday.

Crocodiles inhabit the area where Ms Cameron went missing. Source: 7 News

"We continue to search the area in the hope of finding her alive (but) because of the proximity of these items near the creek bank, we cannot rule out the possibility of a crocodile attack."

On Facebook, Anne's granddaughter Isabella Eggins thanked those who helped in the extensive search for her nan.

"It is my deep regret to inform you that following an extensive search and the discovery of certain items as a result of that search, we have the firm belief that my nan Anne Cameron has passed away in tragic circumstances," Isabella wrote.

"She will be missed and will always be loved by her family."

The woman was reported missing from the OzCare aged facility. Source: 7 News
Ed Lukin said clothes, a walking stick, and what are believed to be human remains have been found. Source: 7 News