The lorry containing the explosive Trinitrotoluene (TNT) was held on suspicion for carrying explosives from the north to be used for the frequent attacks carried out by the LTTE at the time in the capital Colombo.
The parked lorry which was in disintegrated state at the Kotahena police station in north Colombo was to be removed from the station premises yesterday when the high explosives were detected.
The use of a backhoe to remove the lorry wreck had led to the packages of concealed explosives falling off, the police said.
The LTTE carried out a series of attacks in the city having transported high explosive C4 concealed in lorries.
The most prominent of the attacks was the 1996 bombing of the Central Bank building which killed 91 people and injured over 1400.