involved in a deadly collision. three people were killed and it could have been a lot worse. brad wheelis has the details. >> reporter: it happened on rural state highway 9, calhoun county, northern mississippi. the tractor-trailer side swiped one bus and slammed head-on into the other. >> it was very intense scene, as you can imagine, with that kind of a wreckage. debris scattered throughout the highway. the bus is actually draped over a guardrail over the bridge of the river. >> reporter: three adults were killed. the bus driver, a teacher and drive of the 18-wheeler. the fire department declared a countywide emergency and help came from all around to set up a triage center at the local fire station. that's where dozens of injured students were transported on local school buses. at least ten students were taken by ambulance and helicopter to area hospitals. radis, c news. o cfo illegal cockfight in the central part of the state when the that's where dozens of injured students were transported on local school buses. at least ten students were taken by ambulance and helicopter to area hospitals. their injuries are not life-threatening. the seniors were returning to ackerman high school after a career day visit to the university of mississippi.