Joseph Nies, 83, of Algonquin.

An 83-year-old man who went missing last week from his residence in Algonquin was located over 500 miles away in another state, authorities said.

Joseph Nies, 83, was last seen at his residence in Algonquin around 9 a.m. Thursday.

The Algonquin Police Department said Nies had not returned home and was not in contact with his family.

The man was believed to be driving a dark green Lexus LS460 with an Illinois license plate.

He was last seen wearing a gray t-shirt, gray shorts and brown Sketcher shoes.

Algonquin Police Department Detective Sergeant Robert Salazar said investigative leads indicated Nies may have been traveling by car and was no longer in the McHenry County area.

Salazar said that Nies is possibly in the beginning stages of dementia and therefore unaware of where he is.

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A Silver Alert, also known as an endangered missing person advisory, was issued statewide.

The alert was canceled on Saturday after Neis was located safely.

The man was found in Oklahoma, Salazar told Lake and McHenry County Scanner.