A man has been accused of attempting to steal a keg of beer from a truck.

Gary Duffel, 44, address unknown, was charged Tuesday with second-degree robbery and public intoxication.

According to an Iowa City police complaint, a delivery driver confronted Duffel when he was taking a keg of beer from a beer truck. Duffel reportedly smelled strongly of alcohol and spoke with slurred speech.

Duffel showed a knife to scare the witness away and then threw the knife into a creek. When the witness approached him again, Duffel punched him in the head, which caused bleeding from his scalp area, the complaint said.

The complaint said Duffel admitted to drinking; he has been arrested for public intoxication June 13, 2011, March 31, 2010, and March 13, 2010.

Public intoxication is an aggravated misdemeanor and second-degree robbery is a Class-C felony.

— by Amy Skarnulis