Louisiana State Police are investigating a fatal motorcycle accident that happened in Donaldsonville Saturday night just after 10 p.m. on LA 70.

Authorities say 38-year-old Ron Clark was riding his 2007 Kawasaki Vulcan motorcycle when it began to drift from the right lane, into the left lane and then off of the road. Police say Clark then struck a street sign and was ejected from the motorcycle.

Although Clark was wearing a helmet at the time of the accident, police say he received serious injures as a result of the crash and was transported to a local hospital where he later died.

Police do not know if Clark was impaired at the time of the accident, but a routine toxicology test was taken and will be analyzed by the Ascension Parish Coroner’s Office.