Interstate 75 southbound was shut down between Jellico and Stinking Creek for a time Friday afternoon after a bus caught fire.
The Campbell County Sheriff's Office says there were 46 students and two chaperones on the bus, which was coming from Lexington to Townsend for an environmental science field trip. All passengers were able to get off the bus safely.
Officials say the bus caught fire in the engine compartment.
Another bus picked up the group.