Bus carrying 4th Marine Division unit overturned at Bessemer military base . 23 Marines have been injured ; four critically , the military says . E-mail to a friend . E Company , 4th Marine Division , 4th Marine Division , was involved . The accident happened Sunday morning , officials said .
Bus carrying 4th Marine Division unit overturned at Bessemer military base . 23 Marines have been injured ; four critically , the military says . E Company , 4th Marine Division , 4th Marine Division , was involved . The accident happened Sunday morning , officials said .