A 21-year-old Athens man was killed early Saturday in a single-vehicle crash in Limestone County.

Dylan A. McMahan was driving a 2008 GMC Sierra when it left Brownsferry Road and overturned before hitting a tree around 12:45 a.m., according to the Alabama Law Enforcement Agency.

He was pronounced dead at the crash scene, which was about two miles south of Athens.

The crash remains under investigation.