NEW : Mitchell Diggs , a spokesman for the University of Mississippi , said the group from Ackerman High School in Choctaw County was in Oxford for a typical admissions visit for seniors . Teacher , bus driver , truck driver are killed in Mississippi wreck , officials say . Comment: About 60 students were on the two buses .
NEW : Teacher , bus driver , truck driver are killed in Mississippi wreck , officials say . Comment: About 60 students were on the two buses .