It is assumed that the people behind this attack are in Libya. Another state sponsor of terrorism is held responsible for the killing of four Iranian opposition politicians in Berlin's Mykonos restaurant on 17 September 1992. Giving its judgment on 10 April 1997, a Berlin court found the Iranian government responsible for the murders. Such violent acts committed on behalf of foreign states are not only criminal offenses but also attacks on the sovereignty of the Federal Republic of Germany. Terrorism without frontiers.
Most foreigners living in Germany totally reject violence and politically motivated extremism.
Only a minority, i.e. 59,000 or 0.8 per cent of all foreigners living in Germany, are members and supporters of extremist organizations . Nevertheless, foreign perpetrators of violent or terrorist attacks have increasingly endangered public security in the past. From 1991 to 1997, the number of serious acts of violence committed by foreigners grew fivefold. Following a drop in the number of these offenses in 1998, the first six months of 1999 witnessed another significant increase. In Turkey, its members are engaged in a general struggle for Kurdish autonomy.