Woman with dementia feared taken by crocodile in Queensland

They were discovered two days after the 79-year-old went missing - just one mile away from her nursing home at Port Douglas in Queensland.

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

"We located a number of items including clothing which we believe are from the missing person", Acting Inspector Ed Lukin told media on Thursday afternoon.

Officers found human remains, a walking stick with her name on it and a pile of her clothes at an inlet connected to a creek infested with large saltwater crocodiles.

"Because of the proximity of these items and this unknown material located by this creek bank we can not rule out a croc attack", he said.

The forensic tests should be completed by Friday morning, and police and SES are continuing to search for the missing woman.

Members of the public in the area are being asked to check their property for any signs of her. "Police hold grave concerns for her well being due to her medical condition, her age, the length of time that she's been missing and the increasing temperatures", authorities said in a statement on Thursday.

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

Ozcare, the company that runs the aged care facility, declined to comment.

Lee de Paauw, 18, injured after he was dared to jump into an Innisfail river in the middle of the night.

A 47-year-old man was killed by a crocodile after wading into a river crossing near Kakadu National Park in the Northern Territory.

The neighbour described her as a "lovely woman".

Noel Ramage, 75, drowned when a croc capsized his "tinnie" at Leaders Creek, NT.

It is feared that Canberra woman Anne Cameron has been killed by crocodiles in far north Queensland.