Two people sustained serious injuries in a fire incident caused by a gas explosion in Ndenderu area, Kiambu County on Sunday night.
The two are said to be part of a cartel working at an illegal gas filling point when one of the cylinders leaked and caused a fire and loud explosion.
Police said the fire spread fast, burning the two as their colleagues escaped.
The fire was contained by firefighters from the county government.
The injured were rushed to Ndenderu Health Centre for treatment and later referred to Kiambu Hospital.
The incident comes days after Energy Regulation Commission (ERC) discovered illegal filling stations in the area.
ERC officials are planning a raid in the area.