Transport Minister Fikile Mbalula condemned the torching of 24 Shosholoza Meyl coaches in Bloemfontein at weekend.
Mbalula said the arson attack is a pure act of criminality and will be dealt with as swiftly and as harshly as possible.
Damage is estimated at R90 million.
According to the Ministry of Transport, the coaches were out of service and earmarked for refurbishment when they were set alight.
“Security personnel noticed a group of young men at the yard and removed them from the property. They later returned and set fire to two coaches.
“Services were not disrupted but the fire affected rolling stock availability and damaged critical cables at the depot,” the Ministry said.
Investigations are ongoing. No arrests have been made.