Police have stepped up their appeals for help to find an elderly, missing man.
They are concerned for the welfare of Colin Halliday. The 88-year-old has been missing since Thursday.
![Colin Halliday, 88, went missing on Thursday.](/web/20170308101732im_/http://www.smh.com.au/content/dam/images/g/u/l/7/s/y/image.related.articleLeadwide.620x349.gul7qz.png/1488081048032.jpg)
He was last seen around 4.30pm at St John of God Hospital in Midland where police say he was dropping off some paperwork.
He left his Ballajura home around 1.30pm and was driving a 2011 model white Hyundai i30 hatchback with the registration number 1DVW166.
Police believe he may have become confused or disorientated.
He is fair skinned, around 180cm tall, and has a solid build.He may be wearing glasses and a black coloured t-shirt and blue jeans.
Anyone with information about his whereabouts should call police on 131 444.
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