A 26-year-old woman from Sun was killed early Thursday morning in a single-vehicle crash in Washington Parish, according to the Louisiana State Police.

LSP officials said that early Thursday morning, shortly after midnight, the LSP’s Troop L investigated a single-vehicle fatal crash on Louisiana Highway 430 at milepost 8.2. The crash claimed the life of Monique Nunn, 26, of Sun.

The troopers’ preliminary investigation revealed that Nunn was driving a 2005 Chevrolet Classic north on Highway 430. For reasons still under investigation, Nunn lost control of the vehicle in a right curve and crossed the southbound lane. The vehicle then ran off the road and struck a tree.

LSP officials said that Nunn was pronounced dead on the scene. Nunn was wearing a seat belt and impairment is unknown, pending a toxicology test.

The crash remains under investigation.