CHESAPEAKE - An HRT bus driver heard something pop and then saw fire in the back wheel area.
The driver on Route 15 in Chesapeake pulled over on S. Military Highway near Smith Avenue and got the three passengers out, said HRT spokesman Tom Holden.
Investigators say the cause of the fire appears to be a mechanical issue.
The situation closed the road for about 20 minutes and it reopened around 11:30 a.m.
A replacement bus was sent right away to continue service on the route, Holden added.