UPDATE: Man dies after motorcycle crash that closed I-41

UPDATE: The man taken by Flight For Life died early Friday morning. Police say neither drugs, alcohol nor speed were factors in the crash. The exact cause is undetermined.

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The Menomonee Falls Police and Fire Departments responded to a report of a traffic crash Thursday morning.

The crash happened shortly before 11 a.m. in approximately the West 13800 block of south bound Interstate Highway 41.

The initial investigation reveals that a single motorcycle with two riders struck the median wall.

One of the riders was transported by Flight for Life with life-threatening injuries.

The other rider was transported to a local hospital for treatment of what is believed to be non-life threatening injuries. 

The cause of the crash remains under investigation.

Stay with CBS 58 News for more information on this developing story.