According to the data from the investigators, radical Islamic organization Al-Asifa from the Balkans is involved in this terrorist act. It unites Slavic adherents of the Islamic fundamentalism and natives of the Arab countries, who settled in Bosnia and Herzegovina (BiH) and in Croatia after the 1992-95 war. According to the Israeli secret services, during this war the major part of the present members of Al-Asifa served in the "Al - Mojahid" and "Kataeb Talaat Yasin" divisions. They were a part of the Bosnian Muslim army (by the way, Israel secretly supported the Bosnian Serbs at that time).