UPDATE: Sadly the elderly woman missing since Friday afternoon on a 3200ha property in central-west Queensland, who was the subject of a massive search, has been located deceased.
Police said in a tweet issued at 8.25pm on Saturday, that they would like to thank local residents and everyone else who assisted in the search for Muriel.
A report will be prepared for the coroner.
EARLIER: A search is continuing for a missing elderly woman in outback Queensland.
Muriel Macdonald, 78, was last seen by family at a Ravensbourne Rd property at Blackall, in central-west Queensland, about 2pm on Friday.
The property spans more than 3200ha.
Police and family hold concerns for her wellbeing as she suffers from a medical condition.
More than 100 volunteers continued to search for Ms Macdonald on Saturday.
The group is made up of State Emergency Service volunteers, government agencies, police and local residents.
Two helicopters and four trail bikes are also assisting.
“Unfortunately to date we’ve had no success,” a police spokeswoman said.
Ms Macdonald is described as Caucasian, around 160cm in height, of a solid build, with grey hair and dull blue eyes.
Anyone with information about her whereabouts is urged to contact police.