BREWSTER (AP) -- Authorities are looking for a prisoner who walked away from a work detail on Cape Cod.

David Nickerson, of Brewster, was nine months into a two-year sentence for drunken driving and other charges.

Barnstable County sheriff's spokesman Roy Lyons tells the Cape Cod Times (http://bit.ly/1822yCB ) the 60-year-old Nickerson walked away from a work detail at the Brewster fire station on Wednesday, and remained at large on Friday.

Police said Nickerson, who is about 5 feet, 7 inches tall and 150 pounds, was last wearing blue jeans, dark boots and a gray sweatshirt or blue jacket that identified him as an inmate.

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Information from: Cape Cod (Mass.) Times, http://www.capecodonline.com