The Nevada National Guard reports an Army Reservist was killed and four Nevada Army National Guardsmen were hurt Wednesday in a military vehicle rollover during training. The accident took place at 3 a.m. May 15th at the Joint Readiness Training Center in Fort Polk, Louisiana. The name of the reservist who died is being withheld at this time. He is not from Nevada. The four injured were members of the 72nd Military Police Company, Nevada Army National Guard, in Las Vegas. Two are being treated at a military hospital. None of the injuries is considered life-threatening, according to the Guard.