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A 38-year-old man died Saturday night in a traffic accident on La. 70 east of La. 3089 in Ascension Parish.

Ron Clark, 38, of Baton Rouge was driving a 2007 Kawasaki Vulcan motorcycle around 10 p.m. eastbound in the right lane on La. 70 when he drifted into the left lane and drove off the roadway, Louisiana State Police said.

Clark hit a highway sign and was thrown from his motorcycle, police said. He was transported to a local hospital, where he was pronounced dead.

It is unknown whether Clark was impaired, police said. A toxicology test will be performed by the Ascension Parish Coroner's Office.