Angry Kisii residents pelted the fire truck with stones and stones after arriving late at the scene and failing to save property worth millions of dollars.
According to reports, the blaze, which occurred just a week after another fire destroyed property in the area, occurred at around 2pm.
The Daily Nation reports that the blaze started in the Sun Kali area, near the Shivling and Kisii Matt supermarkets and spread to other nearby businesses.
Business owners and other community members struggled to extinguish the blazing fire, a huge task given to many lacking expertise and no fire engines to assist them.
It is alleged that the fire broke out when the county government fire truck was on another rescue operation, forcing the disaster management office to seek help from a nearby county, from Nyamira.
By the time the truck arrived from Nyamira, an hour had passed and there was little left to collect.
The incident angered residents who wanted to set the car on fire and forced police to open fire to disperse the angry mob.
Accompanied by police officers, the truck was driven to a nearby fire station, where locals joined the fire department to continue extinguishing the blaze.
The Kisii County government through a statement sent to the media accused the spectators of throwing stones at the fire truck which delayed the rescue operation.
“We call on the public to refrain from this practice because two offenses do not bring justice,” the statement read.
Kisii County Police Commander Francis Kooli added that authorities had launched an investigation to determine the source of the fire and to keep residents away from rumors.
Following the fire the traders were left without a means of subsistence as their buildings and reserves were destroyed by the fire or looted.