A suspected thief was on Tuesday evening lynched in Kamashia, Mumias West sub-county.
The man was reported to have stolen a motorcycle two months ago before going into hiding.
Motorcyclists waylaid him in Kakamega town, where he was spotted, and took him to Mumias where an angry mob stoned him to death on the Ekero-Sabatia road.
They then doused the body in petrol and set it ablaze.
The incident caused a major traffic snarl-up on the road before police took the body to St Mary’s Mortuary in Mumias town.
Assistant Chief Idi Okweto said the suspect, identified as Ramadhan Bakari, was known as a notorious criminal who came from the nearby Lureko village.
“We arrived to find an angry mob burning the body of the suspect, who they accused of terrorising locals,” said Mr Okweto.
The police have since launched investigations into the incident.
"We informed the police and they are investigating the matter," said the assistant chief.
No one has been arrested in connection with the incident so far.