Sources familiar with the matter said the officials were taken into custody on Thursday evening by detectives from the Directorate of Criminal Investigations (DCI).
The operation is understood to be part of a broader probe into claims that fuel not meeting required standards may have entered the local supply chain.
The allegations have triggered concern among consumers and industry stakeholders, given the critical role fuel plays in the country’s economy.
Questions are now being raised about regulatory oversight and whether existing quality control measures are sufficient to safeguard the market.
EPRA, the agency mandated to regulate the energy and petroleum sectors, is responsible for ensuring that all fuel products meet established standards before reaching consumers.
Similarly, the Kenya Pipeline Company oversees the transportation and storage of petroleum products, making both institutions central to maintaining integrity within the supply chain.
Investigators are expected to examine procurement processes, testing protocols and distribution systems as they seek to establish whether there were lapses or deliberate actions that allowed substandard fuel into circulation.
The outcome of the probe could have far-reaching implications for the sector, including possible policy and operational changes.
The arrests have also intensified scrutiny on accountability within key public institutions, particularly those entrusted with safeguarding essential commodities.
Analysts note that any compromise in fuel quality can have widespread effects, including damage to vehicles, increased maintenance costs and potential risks to public safety.
While authorities have yet to release detailed findings, the development signals a firm stance by investigative agencies in addressing concerns within the energy sector.
The involvement of senior officials underscores the seriousness of the matter and the need for thorough and transparent investigations.
Consumers and industry players are now awaiting further updates, including possible charges and court proceedings.
The case is also likely to prompt renewed calls for stronger oversight mechanisms and enhanced transparency in procurement and regulatory processes.