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BLACK RIVER FALLS — One person was killed and another critically injured in a single-vehicle rollover crash Friday in Black River Falls.

Neither victim was immediately identified, pending notification of family.

Black River Falls police responded at around 9 p.m. to a call about a crash on Highway 54 near Andrews Road. An investigation showed the vehicle was traveling west on Highway 54, crossed the median and continued off the roadway until it rolled over, according to a report from police spokesman Jake Henning.

One occupant was pronounced dead at the scene, and the injured occupant was flown to a local hospital.

Lack of seatbelt use, alcohol and speed are believed to be factors in the crash, Henning reported.

The crash remains under investigation by the police department and Wisconsin State Patrol.