Image: WJZY/News Nation A head-on collision between a school bus and a dump truck Wednesday in North Carolina has left 15 students hospitalized, officials say.The Charlotte Mecklenburg School District, in a statement, said 40 students were traveling on the bus at the time of the crash this morning."Bus 222 is a school bus that serves South Mecklenburg high school," the district said. "The school bus driver is also injured." Local medical officials told Queen City News that one person has life-threatening injuries and another has serious injuries following the crash.