Peshawar: Traumatised students of an army-run school here hit by Pakistan's worst terror attack returned to school as thousands of educational institutions today reopened across the country after an unusually long winter break, extended for 12 days due to threat of militants.

The schools which were able to fulfill the criteria set by the government were issued no-objection certificates (NOCs) whereas some institutions which failed to make arrangements such as installation of CCTV cameras and higher boundary walls across the campus boundaries were not issued NOCs.