The student had been suspended from the school for fighting but returned with run gun and killed five students and a guard in what appears to be a revenge attack. He and his gang attacked at about 03:00 (00:00 GMT) while students at Lokichogio Mixed Secondary School were asleep in their dormitories.
The student was identified as 20-year-old Abraham Lochor from South Sudan. He was arrested and being held at Kakuma police station. However, an irate crowd got to him, dragged him from his cell and killed him.
“The suspect was held at police station for interrogation over the morning killings, we are trying to establish how they managed to get him. It’s unfortunate,” said police chief Ronald Opili.
The Kenya Red Cross said it had evacuated those injured in the school attack by plane for emergency treatment.
