The driver of a bus which was destroyed in a blaze on Friday (October 4) was uninjured.
There were no passengers on the coach when the fire started at about 9.50am on the A6116 Corby to Thrapston road near the Sudborough turn.
A spokesman for the fire service said: “Two crews attended, one from Thrapston and one from Corby.
“We believe the fire was caused by an engine fault.”
Police closed a section of the road and traffic was diverted through Sudborough while emergency services dealt with the incident.
The road was re-opened at about 1pm.