TVRDOSIN (SITA) At a Friday press conference the spokesman for the Police CorpsŽ Regional Headquarters in Zilina revealed that police seized 9.5 kilograms of semtex in Tvrdosin, northern Slovakia on Thursday. The police officers seized the explosive during a routine check of a red Skoda Forman car with Tvrdosin license plates. Police detained one of the occupants, a 24-year-old unemployed man, and they released the second man, who was unaware of the explosives. Police discovered two kinds of semtex, the red kind, which can be identified by screening devices, and the gray military type, which is undetectable. One kilogram of semtex goes for 4,000 to 5,000 DEM in the West and 20,000 to 30,000 SKK in Slovakia. The seized semtex is sufficient to destroy 11 cars.