PSC/PR/COMM.2(DXXIX) Page 2 Sudan, and facilitating the demarcation of the Safe Demilitarised Border Zone. Council calls upon the parties to implement the September 2012 Cooperation Agreements related to border agreements especially the demarcation of the Safe demilitarised Border Zone (SDBZ) to allow JBVMM to effectively discharge its mandate; 8. Commends UNISFA and its Head of Mission and Force Commander for efforts in keeping peace and stability in the Abyei Area; 9. Recalls the completion of the work conducted by the Investigation Committee established in pursuance of communiqué PSC/PR/COMM.(CCCLXXIV), to investigate the killing of Chief Koul Deng Koul and UNISFA personnel on 4 May 2013, Council requests the Commission to submit the report of the Investigative Committee to Council by September 2015; 10. Recognizes the delay in holding the referendum on the status of Abyei in accordance with the Abyei Protocol of the 2005 Comprehensive Peace Agreement (CPA). Council urges the Governments of the Sudan and South Sudan to demonstrate political will and resolve the status of Abyei and requests the Chairperson of the Commission, in consultation with the AUHIP, to engage the two Heads of State to resolve the status of Abyei on the basis of the AUHIP proposal of 21 September 2012; 11. Decides to remain seized of the matters.