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22 Marines injured at exercise at Southern California base

An official at the base hospital told NBC News that most of the injuries were related to inhalation of a noxious substance.

A view of the Twentynine Palms Marine Base in 2005 near Twentynine Palms, Calif. (Photo by David McNew/Getty)
A view of the Twentynine Palms Marine Base in 2005 near Twentynine Palms, Calif.Getty Images

M. Johnson