Police are appealing to the public for any information of a vulnerable missing man from Aylesbury.
Mr Wheeler is 5ft 9ins tall, of stocky build, with short brown hair and brown eyes.
He was last seen in the Bierton Road area where he was wearing grey tracksuit trousers, a grey t-shirt, jacket and sand-coloured boots.
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Tuesday evening's weather for the east of the region
Tuesday evening's weather for the west of the region
Highways England thanked people for pointing it out. The A34 sign has now been removed.