The state-owned South African firm, Transnet, says it has shut down a petroleum pipeline in the coastal city of Durban after a fire.
In a statement the company said its initial assessment suggested the blaze was caused by an attempt to steal fuel from the pipeline.
Two people have died in the fire.
A privately-run emergency service has tweeted photos of the blaze:
https://twitter.com/AlsParamedics/status/1454675715132121092