Suspected Maoists on Tuesday bombed a state-run-school at Parchha village in Bihar's Rohtas district.
"More than 50 heavily-armed Maoists raided the school early this morning and triggered dynamite blast to blow up the school building," Superintendent of Police Manu Maharaj said.
Three of the seven rooms of the school were partially damaged, he said.
Maoists were opposed to the use of the school for keeping security personnel from time to time in Naxal-hit areas, Maharaj said.
A combing operation has been launched in the area to nab them, sources said.