An investigation into a fatal single-vehicle crash blocked a major thoroughfare in Cobb County for more than two hours Friday morning.

The collision was reported just before 5 a.m. along Barrett Parkway at Stilesboro Road near Kennesaw, Cobb police confirmed.

A blue 2013 Hyundai Sonata, driven by 20-year-old Amy Wamweya of Kennesaw, was headed north on Barrett Parkway. As she approached the intersection, “for reasons unknown, Ms. Wamweya failed to maintain a single lane of travel, crossed over the raised concrete median and collided with a utility pole,” police spokesperson Aaron Wilson said.

She died at the scene.

The road reopened by 7:30 a.m., but the crash remains under investigation, police said.

Cobb County police investigated a fatal single-vehicle crash on Barrett Parkway early Friday morning.

Credit: John Spink / John.Spink@ajc.com

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Credit: John Spink / John.Spink@ajc.com

Anyone with information is asked to contact Cobb police at 770-499-3987.