There are concerns for a 69-year-old man who has not been seen since Friday.
Donald Walker was last seen at Graylands Hospital between 3pm and 5pm.
Mr Walker is described as being 166cm tall with a medium, frail build, a fair complexion and short, grey hair,
Police said there were concerns for his wellbeing and he requires daily medication.
Those with information on his whereabouts have been asked to contact police on 131 444.