ROCKFORD — A 51-year-old Indiana man was killed Sunday morning in a rollover crash on U.S. 20 near Weldon Road.

The man was traveling west on U.S. 20 from Weldon Road around 6:50 a.m. when, for an unknown reason, he traveled down an embankment into the eastbound lanes and overturned his 2007 white Ford Edge before coming to a stop in a creek bed, police said.

The driver was pronounced dead at the scene by the Winnebago County coroner.

Traffic lanes were temporarily shut down while police investigated.

The crash is under investigation by the Illinois State Police.

Chris Green:; @chrisfgreen