13 students died at Kakamega Primary School as they attempted to leave the school.
Another 39 students were injured and rushed to the Kakamega County Referral Hospital.
Kakamega Central police commander David Kabena confirmed the incident.
Pupils reportedly started running out of the classrooms after a bell rung to go home.
Some pupils said a teacher, who was behind the pupils, ordered them to leave quickly and they started running down the stairs.
The pupils in front stumbled and fell and those behind also tripped.
The staircase is narrow.
Classics Maina and Kingangi eulogized saying
that thing just broke my heart. When I saw that thing I thought the hell is this? how do you deal with this as a parent? You know that is something that you cannot just imagine, when you prepare your kids to got o school in the morning they are so eager, then that happens, that was so unfortunate because there is no way that any parent who anticipates burying their child.
Tto every single parent you are in our thoughts and prayers. Our sincere condolences, that should never happen, unfortunately it did and that’s the worst thing ever, coz ad a parent you cant even start to imagine the pain