A/HRC/4/59 page 3 that benefit both Greek Cypriots and Turkish Cypriots in areas of common concern. The Security Council, in the eighth preambular paragraph of its resolution 1728 (2006) of 15 December 2006, also expressed concern about the obstruction of bicommunal activities, which undermines the efforts of groups and individuals to contribute to the peace process and build trust across divisions. 7. A number of human rights violations, some serious, remain unpunished. In many cases this is due to lack of cooperation between the two sides, in particular with regard to the law enforcement agencies, as well as to ineffective investigations by the authorities. There is a pressing need to deal with this issue. Additionally, as described in my report of 1 December 2006 to the Security Council on the United Nations operation in Cyprus (S/2006/931), which covers developments from 18 May to 27 November 2006, a rising trend of criminal activity in the buffer zone, in particular human trafficking activities, continues to be reported by both sides. According to information provided by the two sides, fewer individuals have been crossing the buffer zone as illegal immigrants, while the number of arrests for human trafficking has increased. 8. UNFICYP has received complaints of systematic discrimination from the representative of the Turkish Cypriot community in Limassol concerning immigration and deportation related cases, delays in issuance of government documents and permits, and difficulties for Turkish Cypriots to secure citizenship for a foreign spouse. These cases can be aggravated by the fact that official documents and application forms are not available in Turkish, even though Turkish is an official language of the Republic as per the Constitution of 1960. In a report made public on 16 May 2006, the European Commission Against Racism and Intolerance of the Council of Europe had recommended that the “Cypriot authorities pay attention and address problems of racism and racial discrimination facing Turkish Cypriot citizens”.2 9. An incident of particular concern, reported on 22 November 2006 and mentioned in my latest report on the United Nations operations in Cyprus (S/2006/931), involved an attack by 15-20 Greek Cypriot youths on a group of Turkish Cypriot students on the grounds of the English school, located on the Greek Cypriot side of Nicosia. Although President Papadopoulos issued a statement condemning the attack shortly after its occurrence, no judicial action is known to have been taken to date. 10. Property continues to be an extremely sensitive issue, with the trend of increasing cases of litigation continuing and the situation in Varosha remaining unchanged (E/CN.4/2006/31, para. 7). Hundreds of Greek Cypriot claims against Turkey for loss of property rights in the north are still pending before the European Court of Human Rights. At the same time, a number of Turkish Cypriot property cases have been taken to courts in the south. A few examples of current legal proceedings are mentioned in the paragraphs below. 11. In the case of Cyprus v. Turkey (2001), the European Court of Human Rights had found a continuing violation of the property rights of displaced Greek Cypriots. In a judgement 2 CRI (2006) 17, para. 82.