The police are to arrest the students and parents who attacked the new principal of the Galle Vidyaloka Vidyalaya today.
According to the education Ministry, the school has been closed till Monday as a result of the tense situation which arose this morning.
The new principal sustained minor injuries while his car was completely damaged after students and parents agitated over his appointment.
Riot police had been deployed to the school after the students pelted stones at the principal and also attacked his car with flower pots.
The Education Ministry said that school property was also damaged in the incident,
In June this year the parents of students studying in the school staged protests along the street against moves to transfer the former principal.
The parents claimed that the former principal had done a lot for the school and should not have been transferred.