KABUL, March 10 (Xinhua)-- As Afghan new educational year begun days ago, unknown insurgents dynamited a primary school in Afghanistan's eastern province of Khost late Monday night, spokesman of educational department in the province Syed Musa Majroh said on Tuesday.

    "The incident occurred in Nader Shah Kot district, last night as a result six class rooms were completely destroyed and eight others were damaged," Majroh told Xinhua.

    He also said that over 400 students benefited from the school.

    Due to security problems over 600 schools mostly in southern provinces of Afghanistan where Taliban insurgents are active have been closed down over the past couple of years.