A Special Task Force of police seized the explosives and detonators from a hideout near a school in Ramban area early Saturday morning, police said, adding that no militants were present at the time of the operation.
The seized material was probably to be used to cause explosions in Jammu after the opening of civil secretariat and other offices in the winter capital of the state, they said.
In a separate incident, security forces gunned down one Lashkar-e-Toiba militant in Mendhar area of Poonch district, police said, adding one AK-56 rifle and some ammunition were recovered from him.
Meanwhile, security forces recovered one .12 bore rifle, 15 rounds of AK assault rifle's ammunition and three kg explosives during a search operation in Basantgarh area of Udhampur.