The Indonesian army has ordered an inventory of its TNT stocks after quantities of the explosive were found in two of six plastic pipes buried close to the East Java home of a key suspect in the October 12 Bali bomb attacks.

The authorities still maintain that the pipes-found near the village of detained suspect Amrozi-only contained assault rifles, pistols and ammunition. But security sources, citing army demolition experts, say TNT was found. They add that the explosives are believed to have been distributed by PT Dahana, a sister company of state-owned arms manufacturer PT Pindad. It is not known if the TNT was from the same batch used in the bomb attacks.

A freeze and inventory of the army's explosives stocks came to light after the military said it had to delay the detonation of 45 unexploded bombs found under a World War II Japanese airstrip at Babo in Papua province. The runway is being lengthened to accommodate larger aircraft needed for British Petroleum's Tanguh natural-as project.