Students of Isale Community High School in Oyo State, on Thursday, set their classrooms ablaze in protest over mass examination failure.
It was gathered that the protest began days ago across secondary schools in the state when the results were first released.
Men of the fire service agents were however called in to help put out the fire.
Teachers in the state say students in other government schools have threatened to also torch their schools.
It was gathered that a new promotion policy was introduced by the Oyo state government, making it mandatory for students to score up to 50% in English Language and Mathematics before such students can qualify for promotion to the next class.
The new policy was the reason behind the mass failure which led to the violence.
On Monday, students of Anglican secondary school in Oyo reportedly unleashed mayhem on their teachers and destroyed billboards bearing the picture of the state Governor, Abiola Ajimobi.
The state Commissioner for Education, Adeniyi Olowofela, declined to comment on the incident.