Learners at a top Nakuru private school set a dormitory on fire on Monday and hurled stones at residents and teams that responded to the incident.
Students of Anestar Boys’ in Bahati went on strike after setting another dormitory ablaze on Thursday night.
Today’s 3am incident saw some pull down a wall before escaping.
Just as was the case on Thursday, journalists were barred from accessing the school, guards saying they were following strict instructions.
“Attempts by neighbours to assist in putting out the fire were met with hostility,” said resident John Mwaura.
He added residents and members of the teams were chased away.
On Thursday, school director Victor Gatimu termed the protest at about 10.30pm a “small issue”.
It was not immediately clear why the students at the well-performing school went on strike.