Four people died following a 3 am stampede at Kericho Green Stadium's gate 'C' on Friday.
Police said the four passed away while undergoing treatment at the county Referral hospital.
The Mashujaa Day stampede was caused by a lady who was selling tea outside the stadium who she accidentally spilled the hot tea in a fire near the gate.
This resulted to an explosion which was mistaken for a teargas, causing panic.
"Several people who wanted to gain entry to the stadium were injured and rushed to Kericho County Referral Hospital on board station motor vehicle and county government ambulances," police said.
"At the said hospital, four unknown females have been confirmed dead."
Three police officers were among the injured, with one of them sustaining a fracture on the right leg, another a cut wound on the right eye and the other head injury.
There were also two Community Health Promoters, one being a man who injured his neck and a woman who sustained injuries on the back and left leg.
Four of the 13 victims suffered soft tissue injuries, while the others sustained injuries on their backs, legs, shoulder and chest.
The injured persons fall between ages 17 years and 67 years old.
"They are all in stable and receiving treatment at Kericho County Referral Hospital," police said.
"The dead bodies have been taken to the morgue pending identification and postmortem,"
Before the incident, people had started streaming into the Kericho Green Stadium at 1 am.