LAKKI MARWAT Jan 1: Unknown miscreants exploded two home-made explosive devices at boys’ primary school in Dallokhel village here late on Monday night, damaging a portion of its boundary wall.

An official said that the bombs weighed 2.5 kg each and the watchman who was present in the school building remained unhurt. Officials of law-enforcement agencies have launched a search operation in the area following the incident. In another such incident the same night, unknown miscreants attacked a house with a hand grenade in Abakhel village.

“The hand grenade exploded in a compound of the house of one Shad Nabi,” an official said, adding that the blast did not cause any human or property loss.

Meanwhile, sub-divisional education officer Rehmatullah Khan on Tuesday asked the heads of primary schools to ensure presence of watchmen in their respective schools during night time.

The instructions to this effect have been delivered to headmasters in Meenakhel, Tajazai, Serai Gambila, Tattarkhel, Gandi Khankhel and Kala Manjiwala circles, said an official. He said that officials of police and education departments would also pay visits to schools at night time to check presence of watchmen on duty.