Dubuque County Sheriff's Department says 21-year-old Dawson Besler, of Epworth, was struck and killed on Highway 20 in Farley

Authorities say an eastern Iowa man has been killed after being hit by a vehicle whose driver is suspected of drunken driving.

The Dubuque County Sheriff's Department says 21-year-old Dawson Besler, of Epworth, was struck and killed early Sunday on Highway 20 in Farley.

Authorities say a vehicle driven by 24-year-old Alex Hannan, of Dubuque, was merging onto the highway around 3 a.m. Sunday when it struck Besler.

Besler was pronounced dead at the scene. It's unclear why he was on foot in the area.

The Telegraph Herald reports Hannan was not injured. He faces a simple misdemeanor charge of operating while intoxicated. Court records do not list an attorney.