Footage showed the vehicle leaning on one of its sides with a partially broken windscreen and pieces of glass scattered all over the place.
The just concluded KCSE exams saw 962,512 candidates sit for the examinations compared to 899,453 the previous year.
The fire incident followed moments after Education CS released the 2024 KCSE exams.
A metallic object weighing approximately 500kg and measuring 2.5m in diameter fell in Makueni.
Boys recorded better mean scores than girls in 23 subjects in last year.
Education CS revealed this is the highest number of cancellations since 2016.
The Kenya National Examination Council is set to commence registration for three national examinations to be administered this year.
Many schools like Kisii had difficulty accessing the results and were still compiling by last evening.
Vailet Kayesi, who left home for Saudia Arabia in 2009, was her family's breadwinner. Some unknown people solicited Sh180,000.