Militants blew up a state-run girls' school in Pakistan's lawless Khyber tribal region today, destroying the building and injuring four persons in nearby homes.
The 18-room school was destroyed by two explosions.
A youth who watched the school is missing and officials feared he had been kidnapped by the militants.
Militants who are opposed to the education of girls have destroyed hundreds of schools in northwest Pakistan over the past two years.
Nearly 200 schools were destroyed in the Swat valley.
Authorities last month briefly shut schools and colleges across Pakistan after two suicide bombers struck the International Islamic University in Islamabad.
In another incident, two men were killed and three persons injured when a rocket struck a house in Landi Kotal area of Khyber Agency.
The house was destroyed by the blast.
Security forces have been battling militants in the area around Landi Kotal.
In the restive Swat valley, the bodies of three militants were found in Maidan area.
Local residents confirmed they were militants but it was not clear who had killed them.