The incident happened Sunday morning as the Wilmac Tours bus was making its way back to Detroit from the 50th anniversary of the March on Washington, WJBK-TV, Detroit, reported.
The 45 passengers aboard the bus were evacuated without injury, although the bus was destroyed by the fire and passengers lost their luggage.
Two other buses picked up the stranded passengers and brought them the rest of the way to Detroit. Passengers will be reimbursed for property damage.
Another Wilmac Tours bus was involved in a collision in Washington Saturday, WJBK said. The details of that incident were not reported, but nine passengers were hospitalized with non-life-threatening injuries.
Wilmac Tours has not commented on the incidents.