A suicide bomber blew himself up inside a paramilitary base in northwest Pakistan Sunday, killing at least eight troops, the army said.

The bomber sneaked into the yard under cover of dark and detonated his explosives inside a large tent, said Bin Yamin, as senior police official.

The victims were members of the Frontier Corps, a paramilitary force that uses recruits from Pakistan's tribal areas and is overseen by Pakistani army officers.

The truck tried to enter the base but soldiers stopped it at a checkpoint before it could do so, said General Athar Abbas, a spokesman for the Pakistani Army.

Besides the death, the blast wounded two other troops, Abbas said.

Many Corps have been deployed to the tribal regions to combat militants who are accused of launching attacks not just in Pakistan but also across the border in Afghanistan.