A gas filling centre along the Nairobi-Mombasa highway was on Tuesday ransacked by police.
The officers found that the station was selling illegal cooking gas. Police seized over 1,000 kg of the product.
Voi Sub County Police Commander Joseph Chesire said they arrested four suspects and also impounded cooking gas cylinders found at the facility.
It is suspected that the gas is stolen from cross-border vehicles travelling along the busy highway.
“The plants have been operating without licences and filling LPG cooking gas cylinders without following regulations,” Mr Chesire said.
“This is an ongoing crackdown on unlicensed filling plants along the highway,” he added.
The suspects are set to be arraigned once investigations are completed, Mr Chesire said.
Oil marketers have decried the increased illegal refilling of Liquefied Petroleum Gas.
Total Kenya managing director Alex Vovk highlighted the fatal impediment that the illegal business exposes unsuspecting customers to.
“If you buy LPG from an illegal place you actually don’t know how it has been refilled or handled. The many explosions you hear caused by cooking gas, 99.99 percent is due to poor handling while refilling. So the safety of many Kenyans is at stake and I think the government has a duty to act on this,” Vovk said during the launch of two Total’s LPG storage tanks in Nairobi.