A school bus crashed into two other vehicles on Friday in Salt Lake, sending at least 28 people - mostly students - to the hospital. The majority of patients were in stable condition, but three were seriously injured: A 16-year-old boy and a 41-year-old man, who were in vehicles, and a 9-year-old, who was on the school bus. Sources told Hawaii News Now the school bus was from Pearl Harbor Elementary School. Paramedics on the scene identified 61 patients in all, 59 of whom were on the bus. Of those, 28 patients were transported to the hospital: Two were taken by ambulances, while the rest were taken on the bus with paramedics on board. The driver of the school bus was not injured. The incident happened about 2:30 p.m., when the bus was traveling on Bougainville Drive. Police are still investigating the cause of the crash, but witnesses said the bus apparently crossed the center line and crashed into two vehicles.