@kahenya of Nairobi was among the first to break the news on Twitter.
@kahenya (Nairobi): In true Kenya fashion, fire mayhem begins. Unconfirmed report that 50 dead in an oil truck/trailer fire in Molo.
Other Twitter users in Kenya reacted to the announcement with a mix of incredulity or even dark humor.
@Lilsony (Nairobi/Mombasa): Wow... something is very wrong with this country
@RafikiKenya (Nairobi): @JustDes It is unbelievable, will Kenyans ever learn to stay away from free fuel?
(Update: BBC News has death toll at 94 as of 8:13 GMT Feb. 1.)